# US counties by share of days with good air quality (US EPA AQI), 2019

All 1000 values come from U.S. Environmental Protection Agency for 2019, so the places are comparable. 498 counties have no value for that period and are not ranked.

- Indicator id: `aqi_good_days_share`
- Unit: %
- Definition: Days with a daily Air Quality Index of 0 to 50 (good) as a percentage of the days of the year with an AQI in a US county. Calculated by Invokely from the day counts in the EPA AirData annual summaries; both counts are stored with each value.
- Source: U.S. Environmental Protection Agency, EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts (https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual)
- Retrieved: 2026-10-12
- Citation: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/good-air-quality-days-share/us-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Alamosa County | 100 |
| 1 | Alexandria city | 100 |
| 1 | Berkeley County | 100 |
| 1 | Carroll County | 100 |
| 1 | Cass County | 100 |
| 1 | Catron County | 100 |
| 1 | Cerro Gordo County | 100 |
| 1 | Colleton County | 100 |
| 1 | Columbiana County | 100 |
| 1 | Franklin County | 100 |
| 1 | Fremont County | 100 |
| 1 | Grant County | 100 |
| 1 | Herkimer County | 100 |
| 1 | Hopewell city | 100 |
| 1 | Jackson County | 100 |
| 1 | Lake County | 100 |
| 1 | Lincoln County | 100 |
| 1 | Los Alamos County | 100 |
| 1 | Pitkin County | 100 |
| 1 | San Juan County | 100 |
| 1 | Socorro County | 100 |
| 1 | Wayne County | 100 |
| 1 | Winchester city | 100 |
| 24 | Lincoln County | 99.7 |
| 25 | Custer County | 99.6 |
| 26 | Apache County | 99.4 |
| 26 | Clearfield County | 99.4 |
| 26 | Hamilton County | 99.4 |
| 26 | Kauai County | 99.4 |
| 30 | Pueblo County | 99.2 |
| 30 | Routt County | 99.2 |
| 30 | Washington County | 99.2 |
| 33 | Gilmer County | 99.1 |
| 33 | Prowers County | 99.1 |
| 33 | San Juan County | 99.1 |
| 33 | Saratoga County | 99.1 |
| 37 | Custer County | 99 |
| 37 | Ford County | 99 |
| 37 | Windham County | 99 |
| 40 | Georgetown County | 98.9 |
| 40 | Lake County | 98.9 |
| 40 | Sherman County | 98.9 |
| 43 | Denali Borough | 98.6 |
| 43 | Honolulu County | 98.6 |
| 43 | Lawrence County | 98.6 |
| 43 | Putnam County | 98.6 |
| 47 | Oswego County | 98.4 |
| 48 | Aleutians East Borough | 98.3 |
| 48 | Fauquier County | 98.3 |
| 50 | North Slope Borough | 98.2 |
| 51 | Flagler County | 98.1 |
| 51 | Meade County | 98.1 |
| 51 | Merrimack County | 98.1 |
| 51 | Mohave County | 98.1 |
| 55 | Clinton County | 98 |
| 55 | Horry County | 98 |
| 55 | Latah County | 98 |
| 55 | Prince Edward County | 98 |
| 55 | Tompkins County | 98 |
| 60 | Greenup County | 97.9 |
| 61 | Blaine County | 97.8 |
| 61 | Hawaii County | 97.8 |
| 61 | Monroe County | 97.8 |
| 64 | Clark County | 97.7 |
| 64 | Jerome County | 97.7 |
| 66 | Boone County | 97.6 |
| 67 | Elko County | 97.5 |
| 67 | Kennebec County | 97.5 |
| 69 | Keweenaw County | 97.4 |
| 69 | Monroe County | 97.4 |
| 71 | Custer County | 97.2 |
| 71 | Huntington County | 97.2 |
| 71 | Norfolk County | 97.2 |
| 71 | St. Lucie County | 97.2 |
| 71 | Tuscola County | 97.2 |
| 76 | Callaway County | 97.1 |
| 76 | Polk County | 97.1 |
| 76 | Sheridan County | 97.1 |
| 79 | Luzerne County | 97 |
| 80 | Mille Lacs County | 96.8 |
| 81 | Indian River County | 96.7 |
| 81 | Jo Daviess County | 96.7 |
| 81 | Luna County | 96.7 |
| 84 | Big Horn County | 96.6 |
| 84 | Coos County | 96.6 |
| 84 | Elk County | 96.6 |
| 84 | Jefferson County | 96.6 |
| 84 | Liberty County | 96.6 |
| 84 | Lyon County | 96.6 |
| 90 | Fond du Lac County | 96.5 |
| 90 | Huron County | 96.5 |
| 92 | Barnstable County | 96.4 |
| 92 | Dutchess County | 96.4 |
| 92 | Hendricks County | 96.4 |
| 92 | Nye County | 96.4 |
| 96 | Caswell County | 96.3 |
| 96 | Knox County | 96.3 |
| 96 | Niagara County | 96.3 |
| 96 | Powell County | 96.3 |
| 96 | Thomas County | 96.3 |
| 101 | Butte County | 96.1 |
| 101 | Highlands County | 96.1 |
| 101 | Hyde County | 96.1 |
| 101 | Mason County | 96.1 |
| 105 | Clark County | 96 |
| 105 | Yalobusha County | 96 |
| 107 | Leavenworth County | 95.9 |
| 107 | Wythe County | 95.9 |
| 109 | Carlton County | 95.8 |
| 109 | Caroline County | 95.8 |
| 109 | Chaves County | 95.8 |
| 109 | Columbia County | 95.8 |
| 109 | Knox County | 95.8 |
| 109 | Macon County | 95.8 |
| 109 | Morgan County | 95.8 |
| 109 | St. James Parish | 95.8 |
| 117 | Roosevelt County | 95.7 |
| 118 | Brown County | 95.6 |
| 118 | Marathon County | 95.6 |
| 120 | Bethel Census Area | 95.3 |
| 120 | Burke County | 95.3 |
| 120 | Mayes County | 95.3 |
| 120 | Prince William County | 95.3 |
| 124 | Macoupin County | 95.2 |
| 125 | Clackamas County | 95.1 |
| 125 | Park County | 95.1 |
| 125 | Putnam County | 95.1 |
| 128 | Door County | 95 |
| 128 | Franklin County | 95 |
| 130 | Cook County | 94.9 |
| 130 | Hughes County | 94.9 |
| 132 | Billings County | 94.8 |
| 132 | Hunt County | 94.8 |
| 132 | Johnson County | 94.8 |
| 132 | Kewaunee County | 94.8 |
| 132 | Tucker County | 94.8 |
| 137 | Chattooga County | 94.7 |
| 137 | Scotts Bluff County | 94.7 |
| 137 | Somerset County | 94.7 |
| 137 | Wexford County | 94.7 |
| 141 | Baker County | 94.5 |
| 141 | Harrison County | 94.5 |
| 141 | Hillsborough County | 94.5 |
| 141 | Morgan County | 94.5 |
| 141 | Rockbridge County | 94.5 |
| 146 | Choctaw County | 94.4 |
| 146 | Jackson County | 94.4 |
| 146 | Rockwall County | 94.4 |
| 146 | Wayne County | 94.4 |
| 150 | Adams County | 94.2 |
| 150 | Charlton County | 94.2 |
| 150 | Columbia County | 94.2 |
| 150 | Jefferson County | 94.2 |
| 150 | Newton County | 94.2 |
| 150 | Twin Falls County | 94.2 |
| 156 | Jefferson County | 94.1 |
| 156 | Kenai Peninsula Borough | 94.1 |
| 158 | Dunn County | 94 |
| 158 | Fergus County | 94 |
| 158 | Goodhue County | 94 |
| 158 | Jackson County | 94 |
| 158 | McKenzie County | 94 |
| 163 | Benzie County | 93.9 |
| 163 | Claiborne County | 93.9 |
| 163 | Ste. Genevieve County | 93.9 |
| 166 | Bremer County | 93.8 |
| 166 | Miami County | 93.8 |
| 166 | Stafford County | 93.8 |
| 169 | Humboldt County | 93.7 |
| 169 | Norfolk city | 93.7 |
| 169 | Phillips County | 93.7 |
| 169 | Posey County | 93.7 |
| 173 | Maui County | 93.6 |
| 174 | Columbia County | 93.5 |
| 174 | Dukes County | 93.5 |
| 174 | Fayette County | 93.5 |
| 174 | Lauderdale County | 93.5 |
| 174 | Victoria County | 93.5 |
| 174 | York County | 93.5 |
| 180 | Monroe County | 93.4 |
| 181 | Carter County | 93.3 |
| 181 | Platte County | 93.3 |
| 181 | Taney County | 93.3 |
| 184 | Oneida County | 93.2 |
| 184 | Skagit County | 93.2 |
| 186 | Floyd County | 93.1 |
| 186 | Schoolcraft County | 93.1 |
| 186 | Weston County | 93.1 |
| 189 | Carroll County | 93 |
| 189 | Creek County | 93 |
| 189 | St. Martin Parish | 93 |
| 192 | Boone County | 92.9 |
| 192 | Grays Harbor County | 92.9 |
| 192 | Hancock County | 92.9 |
| 192 | Osceola County | 92.9 |
| 192 | Trigg County | 92.9 |
| 197 | Penobscot County | 92.8 |
| 197 | Yellowstone County | 92.8 |
| 199 | Andrew County | 92.7 |
| 200 | Delta County | 92.6 |
| 200 | Indiana County | 92.6 |
| 200 | Kent County | 92.6 |
| 200 | Manitowoc County | 92.6 |
| 200 | Shelby County | 92.6 |
| 205 | Coos County | 92.5 |
| 206 | Belknap County | 92.4 |
| 207 | Carteret County | 92.3 |
| 207 | DeKalb County | 92.3 |
| 207 | Okaloosa County | 92.3 |
| 207 | Scioto County | 92.3 |
| 207 | Ward County | 92.3 |
| 207 | Warrick County | 92.3 |
| 213 | Calvert County | 92.2 |
| 213 | Dawson County | 92.2 |
| 213 | Garfield County | 92.2 |
| 213 | Walworth County | 92.2 |
| 213 | Wood County | 92.2 |
| 218 | Harrison County | 92.1 |
| 218 | Kitsap County | 92.1 |
| 218 | Lee County | 92.1 |
| 218 | Pasco County | 92.1 |
| 222 | Whatcom County | 92 |
| 223 | St. John the Baptist Parish | 91.8 |
| 224 | Avery County | 91.7 |
| 224 | Cass County | 91.7 |
| 224 | Greenbrier County | 91.7 |
| 224 | Lake County | 91.7 |
| 224 | Pointe Coupee Parish | 91.7 |
| 229 | Giles County | 91.6 |
| 230 | Churchill County | 91.5 |
| 231 | Charles County | 91.4 |
| 231 | Effingham County | 91.4 |
| 231 | Knox County | 91.4 |
| 231 | Perry County | 91.4 |
| 235 | Oxford County | 91.3 |
| 236 | Aiken County | 91.2 |
| 236 | Archuleta County | 91.2 |
| 236 | Ashland County | 91.2 |
| 236 | Boone County | 91.2 |
| 236 | Elmore County | 91.2 |
| 236 | Lake County | 91.2 |
| 236 | Manatee County | 91.2 |
| 236 | Rockingham County | 91.2 |
| 244 | Rock County | 91.1 |
| 245 | Grafton County | 91 |
| 245 | Hood County | 91 |
| 245 | Licking County | 91 |
| 245 | Lincoln County | 91 |
| 245 | Simpson County | 91 |
| 245 | Suffolk city | 91 |
| 251 | Wabash County | 90.9 |
| 251 | Washington County | 90.9 |
| 253 | Johnston County | 90.8 |
| 253 | Livingston County | 90.8 |
| 255 | Cheshire County | 90.7 |
| 256 | Androscoggin County | 90.6 |
| 256 | Gregg County | 90.6 |
| 258 | Bell County | 90.5 |
| 258 | Colbert County | 90.5 |
| 260 | Bannock County | 90.4 |
| 260 | Monmouth County | 90.4 |
| 260 | Oliver County | 90.4 |
| 263 | Becker County | 90.3 |
| 263 | Crow Wing County | 90.3 |
| 263 | Manistee County | 90.3 |
| 266 | Ashtabula County | 90.2 |
| 266 | Charles City County | 90.2 |
| 266 | Darlington County | 90.2 |
| 266 | Jessamine County | 90.2 |
| 270 | Bennington County | 90.1 |
| 270 | Madison County | 90.1 |
| 270 | Muskegon County | 90.1 |
| 270 | Washington County | 90.1 |
| 274 | Noble County | 90 |
| 275 | Adams County | 89.9 |
| 275 | Perry County | 89.9 |
| 275 | Rosebud County | 89.9 |
| 278 | Alexander County | 89.8 |
| 278 | Cascade County | 89.8 |
| 278 | Cass County | 89.8 |
| 278 | Essex County | 89.8 |
| 278 | Natrona County | 89.8 |
| 283 | Hall County | 89.7 |
| 284 | Belmont County | 89.6 |
| 284 | Smith County | 89.6 |
| 286 | Williams County | 89.5 |
| 287 | Potter County | 89.4 |
| 287 | Washington County | 89.4 |
| 289 | Carbon County | 89.3 |
| 289 | Douglas County | 89.3 |
| 289 | Morris County | 89.3 |
| 292 | Berrien County | 89.2 |
| 292 | Lycoming County | 89.2 |
| 294 | Bucks County | 89.1 |
| 295 | Albemarle County | 89 |
| 295 | Brazoria County | 89 |
| 295 | Chase County | 89 |
| 295 | Knox County | 89 |
| 295 | Pulaski County | 89 |
| 300 | Hanover County | 88.9 |
| 301 | Delaware County | 88.8 |
| 301 | Jasper County | 88.8 |
| 301 | Whitman County | 88.8 |
| 304 | Sumter County | 88.7 |
| 304 | Wilson County | 88.7 |
| 304 | Winona County | 88.7 |
| 307 | Martin County | 88.5 |
| 307 | Teton County | 88.5 |
| 309 | Ascension Parish | 88.4 |
| 309 | Vilas County | 88.4 |
| 311 | Columbia County | 88.2 |
| 311 | Richland County | 88.2 |
| 313 | Bullitt County | 88.1 |
| 313 | Caldwell County | 88.1 |
| 315 | Chautauqua County | 88 |
| 315 | Rio Arriba County | 88 |
| 315 | Taos County | 88 |
| 318 | Osage County | 87.9 |
| 319 | Tioga County | 87.8 |
| 319 | Williamson County | 87.8 |
| 321 | Brevard County | 87.7 |
| 321 | Greene County | 87.7 |
| 321 | Iron County | 87.7 |
| 324 | New Hanover County | 87.6 |
| 325 | Lawrence County | 87.5 |
| 326 | Rockingham County | 87.4 |
| 326 | Sheboygan County | 87.4 |
| 328 | Muskogee County | 87.3 |
| 328 | Parker County | 87.3 |
| 330 | Beltrami County | 87.2 |
| 331 | Mitchell County | 87.1 |
| 331 | San Benito County | 87.1 |
| 331 | Sonoma County | 87.1 |
| 334 | Pike County | 87 |
| 335 | Clinton County | 86.9 |
| 335 | Culberson County | 86.9 |
| 337 | Amador County | 86.8 |
| 338 | Douglas County | 86.5 |
| 338 | Franklin County | 86.5 |
| 338 | Franklin County | 86.5 |
| 338 | Lancaster County | 86.5 |
| 338 | Lenoir County | 86.5 |
| 343 | Powder River County | 86.4 |
| 344 | Adams County | 86.3 |
| 344 | Garfield County | 86.3 |
| 344 | Portage County | 86.3 |
| 344 | Sheridan County | 86.3 |
| 344 | Steuben County | 86.3 |
| 344 | Uinta County | 86.3 |
| 350 | Canadian County | 86.2 |
| 351 | Converse County | 86 |
| 351 | Rockland County | 86 |
| 353 | McLennan County | 85.8 |
| 353 | Union County | 85.8 |
| 355 | Lake County | 85.7 |
| 355 | Racine County | 85.7 |
| 357 | Monongalia County | 85.6 |
| 357 | Nassau County | 85.6 |
| 359 | Henrico County | 85.4 |
| 359 | Ouachita Parish | 85.4 |
| 361 | Madison County | 85.3 |
| 362 | Brown County | 85.2 |
| 362 | Garrett County | 85.2 |
| 362 | Lubbock County | 85.2 |
| 362 | Trego County | 85.2 |
| 366 | Carroll County | 85.1 |
| 366 | Johnson County | 85.1 |
| 368 | Delaware County | 84.9 |
| 368 | Hancock County | 84.9 |
| 368 | Loudoun County | 84.9 |
| 371 | Forest County | 84.8 |
| 371 | Hancock County | 84.8 |
| 373 | Cabell County | 84.7 |
| 373 | Collin County | 84.7 |
| 373 | Del Norte County | 84.7 |
| 373 | Deschutes County | 84.7 |
| 373 | Johnson County | 84.7 |
| 373 | Lackawanna County | 84.7 |
| 373 | Westchester County | 84.7 |
| 380 | Lyon County | 84.5 |
| 380 | Mason County | 84.5 |
| 380 | Rockingham County | 84.5 |
| 383 | Lewis County | 84.4 |
| 384 | Lynchburg city | 84.3 |
| 384 | Missaukee County | 84.3 |
| 384 | Stearns County | 84.3 |
| 387 | Glynn County | 84.2 |
| 387 | Greene County | 84.2 |
| 387 | Jefferson County | 84.2 |
| 390 | Orange County | 84.1 |
| 390 | Shasta County | 84.1 |
| 390 | Union County | 84.1 |
| 393 | Chesterfield County | 83.9 |
| 393 | DeKalb County | 83.9 |
| 393 | Oldham County | 83.9 |
| 396 | Berkeley County | 83.8 |
| 396 | Chittenden County | 83.8 |
| 396 | Grant County | 83.8 |
| 396 | St. Louis County | 83.8 |
| 400 | Cowlitz County | 83.6 |
| 400 | Murray County | 83.6 |
| 400 | Trinity County | 83.6 |
| 403 | Yavapai County | 83.5 |
| 404 | Wood County | 83.4 |
| 405 | Aroostook County | 83.3 |
| 405 | Ottawa County | 83.3 |
| 407 | Clinton County | 83.2 |
| 407 | La Paz County | 83.2 |
| 407 | Ravalli County | 83.2 |
| 407 | Stoddard County | 83.2 |
| 411 | Maury County | 83.1 |
| 412 | Monterey County | 83 |
| 412 | Susquehanna County | 83 |
| 414 | Cass County | 82.9 |
| 415 | Shelby County | 82.8 |
| 415 | St. Charles County | 82.8 |
| 417 | Benton County | 82.7 |
| 417 | Siskiyou County | 82.7 |
| 419 | Athens County | 82.5 |
| 419 | Campbell County | 82.5 |
| 419 | Gallatin County | 82.5 |
| 419 | Jackson County | 82.5 |
| 419 | Mercer County | 82.5 |
| 419 | Minnehaha County | 82.5 |
| 419 | Onondaga County | 82.5 |
| 426 | Box Elder County | 82.4 |
| 427 | Geauga County | 82.2 |
| 427 | Klickitat County | 82.2 |
| 427 | Tuscaloosa County | 82.2 |
| 430 | Houston County | 82.1 |
| 431 | Christian County | 82 |
| 431 | Greene County | 82 |
| 431 | Person County | 82 |
| 434 | Burleigh County | 81.9 |
| 434 | Walla Walla County | 81.9 |
| 434 | Washington County | 81.9 |
| 437 | Gilpin County | 81.8 |
| 437 | Gloucester County | 81.8 |
| 437 | Martin County | 81.8 |
| 440 | Codington County | 81.7 |
| 440 | Virginia Beach city | 81.7 |
| 442 | Le Flore County | 81.6 |
| 442 | Passaic County | 81.6 |
| 444 | Baldwin County | 81.5 |
| 444 | Frederick County | 81.5 |
| 444 | Macomb County | 81.5 |
| 447 | Baker County | 81.4 |
| 447 | Orange County | 81.4 |
| 449 | Granville County | 81.3 |
| 449 | Hampshire County | 81.3 |
| 449 | LaPorte County | 81.3 |
| 449 | Napa County | 81.3 |
| 453 | Allegan County | 81.2 |
| 453 | White Pine County | 81.2 |
| 455 | Carson City | 81.1 |
| 455 | Laramie County | 81.1 |
| 455 | Seminole County | 81.1 |
| 455 | Sumter County | 81.1 |
| 459 | Adair County | 80.8 |
| 459 | Putnam County | 80.8 |
| 461 | Silver Bow County | 80.7 |
| 462 | Polk County | 80.6 |
| 463 | Arlington County | 80.5 |
| 463 | Grand County | 80.5 |
| 463 | Navajo County | 80.5 |
| 463 | Taylor County | 80.5 |
| 467 | Bonneville County | 80.4 |
| 467 | Collier County | 80.4 |
| 469 | Bristol city | 80.3 |
| 469 | Mendocino County | 80.3 |
| 471 | Marin County | 80.2 |
| 472 | Calaveras County | 80 |
| 472 | Lake County | 80 |
| 472 | Orleans Parish | 80 |
| 475 | Ohio County | 79.9 |
| 476 | Wright County | 79.8 |
| 477 | Bay County | 79.7 |
| 477 | Bonner County | 79.7 |
| 477 | Brooke County | 79.7 |
| 477 | Fremont County | 79.7 |
| 477 | Santa Cruz County | 79.7 |
| 482 | Plymouth County | 79.6 |
| 482 | Wallowa County | 79.6 |
| 484 | Iberville Parish | 79.5 |
| 484 | Oakland County | 79.5 |
| 484 | Thurston County | 79.5 |
| 487 | Alachua County | 79.4 |
| 487 | Middlesex County | 79.4 |
| 489 | Lake County | 79.3 |
| 490 | Cass County | 79.2 |
| 490 | Kootenai County | 79.2 |
| 490 | Lee County | 79.2 |
| 490 | Pike County | 79.2 |
| 490 | Sanders County | 79.2 |
| 495 | Essex County | 79.1 |
| 495 | Randall County | 79.1 |
| 497 | Bossier Parish | 79 |
| 498 | San Juan County | 78.8 |
| 498 | Sevier County | 78.8 |
| 500 | Montgomery County | 78.7 |
| 501 | Sumner County | 78.6 |
| 502 | Oconee County | 78.5 |
| 503 | Roanoke County | 78.4 |
| 503 | San Miguel County | 78.4 |
| 503 | Tooele County | 78.4 |
| 506 | Volusia County | 78.3 |
| 506 | Yancey County | 78.3 |
| 508 | Canyon County | 78.1 |
| 508 | Clallam County | 78.1 |
| 510 | Chesterfield County | 78 |
| 510 | Graham County | 78 |
| 510 | Westmoreland County | 78 |
| 513 | Pickens County | 77.8 |
| 514 | Coffee County | 77.7 |
| 514 | Hampton city | 77.7 |
| 516 | Anderson County | 77.6 |
| 516 | Bradford County | 77.6 |
| 518 | Multnomah County | 77.5 |
| 518 | Terrebonne Parish | 77.5 |
| 518 | Washington County | 77.5 |
| 518 | Washington County | 77.5 |
| 522 | Juneau City and Borough | 77.3 |
| 522 | Sedgwick County | 77.3 |
| 522 | Sequoyah County | 77.3 |
| 525 | Franklin County | 77.2 |
| 525 | Rockdale County | 77.2 |
| 527 | Woodbury County | 77.1 |
| 528 | Dorchester County | 77 |
| 528 | Pitt County | 77 |
| 528 | Rutland County | 77 |
| 528 | Sauk County | 77 |
| 532 | Brewster County | 76.8 |
| 532 | Montgomery County | 76.8 |
| 534 | Coconino County | 76.7 |
| 534 | Kings County | 76.7 |
| 536 | Bristol County | 76.6 |
| 536 | Warren County | 76.6 |
| 538 | Palm Beach County | 76.5 |
| 539 | Dyer County | 76.4 |
| 539 | Haywood County | 76.4 |
| 539 | Montezuma County | 76.4 |
| 542 | Salem city | 76.3 |
| 542 | Tuolumne County | 76.3 |
| 544 | Kaufman County | 76.2 |
| 544 | Ocean County | 76.2 |
| 544 | Wakulla County | 76.2 |
| 547 | Caddo Parish | 76.1 |
| 547 | Clark County | 76.1 |
| 549 | Navarro County | 76 |
| 550 | Buncombe County | 75.9 |
| 550 | Frederick County | 75.9 |
| 552 | Edgecombe County | 75.8 |
| 552 | Fayette County | 75.8 |
| 552 | Sandoval County | 75.8 |
| 555 | Glenn County | 75.7 |
| 555 | Harrison County | 75.7 |
| 557 | Albany County | 75.6 |
| 557 | Anderson County | 75.6 |
| 557 | Kent County | 75.6 |
| 557 | Nez Perce County | 75.6 |
| 557 | Rowan County | 75.6 |
| 557 | San Mateo County | 75.6 |
| 557 | Suffolk County | 75.6 |
| 557 | Valencia County | 75.6 |
| 565 | Santa Fe County | 75.4 |
| 566 | Anoka County | 75.3 |
| 566 | Richmond County | 75.3 |
| 568 | Nassau County | 75.2 |
| 569 | Ingham County | 75.1 |
| 569 | La Crosse County | 75.1 |
| 571 | Benton County | 75 |
| 572 | Wasco County | 74.9 |
| 573 | Brookings County | 74.8 |
| 573 | Douglas County | 74.8 |
| 573 | El Dorado County | 74.8 |
| 573 | Scott County | 74.8 |
| 577 | Ozaukee County | 74.7 |
| 578 | Erie County | 74.5 |
| 578 | Monroe County | 74.5 |
| 578 | Olmsted County | 74.5 |
| 578 | Union County | 74.5 |
| 582 | Atlantic County | 74 |
| 582 | Pennington County | 74 |
| 584 | Kane County | 73.9 |
| 584 | Lawrence County | 73.9 |
| 584 | Rapides Parish | 73.9 |
| 587 | Douglas County | 73.8 |
| 587 | Eau Claire County | 73.8 |
| 587 | Washington County | 73.8 |
| 590 | Dakota County | 73.7 |
| 590 | Jefferson Parish | 73.7 |
| 590 | Van Buren County | 73.7 |
| 593 | Marion County | 73.6 |
| 594 | Brown County | 73.4 |
| 594 | Cecil County | 73.4 |
| 594 | Charleston County | 73.4 |
| 594 | Kittitas County | 73.4 |
| 594 | Montgomery County | 73.4 |
| 594 | Polk County | 73.4 |
| 594 | Sarasota County | 73.4 |
| 594 | Washington County | 73.4 |
| 602 | Lincoln County | 73.3 |
| 602 | St. Tammany Parish | 73.3 |
| 604 | Flathead County | 73.2 |
| 604 | Howard County | 73.2 |
| 604 | La Plata County | 73.2 |
| 604 | Umatilla County | 73.2 |
| 608 | Berkshire County | 73.1 |
| 608 | Valley County | 73.1 |
| 610 | Ada County | 72.9 |
| 610 | Clay County | 72.9 |
| 610 | Crook County | 72.9 |
| 610 | Gunnison County | 72.9 |
| 610 | St. Clair County | 72.9 |
| 615 | Weber County | 72.7 |
| 616 | Carbon County | 72.6 |
| 616 | Matanuska-Susitna Borough | 72.6 |
| 616 | Maverick County | 72.6 |
| 616 | Sublette County | 72.6 |
| 620 | Chippewa County | 72.4 |
| 620 | Madison County | 72.4 |
| 620 | Montgomery County | 72.4 |
| 623 | Randolph County | 72.2 |
| 624 | Hancock County | 72.1 |
| 624 | Lawrence County | 72.1 |
| 624 | Tehama County | 72.1 |
| 627 | Citrus County | 72 |
| 627 | Etowah County | 72 |
| 629 | Hardin County | 71.9 |
| 630 | Erie County | 71.8 |
| 630 | Greene County | 71.8 |
| 630 | Kalamazoo County | 71.8 |
| 630 | Kanawha County | 71.8 |
| 630 | Lorain County | 71.8 |
| 630 | Tangipahoa Parish | 71.8 |
| 636 | Armstrong County | 71.5 |
| 636 | Jefferson County | 71.5 |
| 636 | Kent County | 71.5 |
| 636 | Montgomery County | 71.5 |
| 636 | Pottawattamie County | 71.5 |
| 636 | Swain County | 71.5 |
| 642 | Craighead County | 71.4 |
| 642 | Hampden County | 71.4 |
| 644 | Colusa County | 71.2 |
| 645 | Boyd County | 71 |
| 646 | Ector County | 70.9 |
| 647 | Chelan County | 70.7 |
| 647 | Hunterdon County | 70.7 |
| 647 | Marion County | 70.7 |
| 647 | Outagamie County | 70.7 |
| 647 | Spokane County | 70.7 |
| 647 | Sweetwater County | 70.7 |
| 653 | Lehigh County | 70.6 |
| 654 | Roane County | 70.5 |
| 655 | Cumberland County | 70.4 |
| 655 | Dodge County | 70.4 |
| 657 | Bartholomew County | 70.3 |
| 658 | Clay County | 70.1 |
| 658 | Montgomery County | 70.1 |
| 660 | Asotin County | 70 |
| 661 | Grant County | 69.9 |
| 662 | Jefferson County | 69.8 |
| 663 | Anchorage Municipality | 69.6 |
| 664 | Nevada County | 69.5 |
| 665 | Cochise County | 69.3 |
| 666 | Spencer County | 69.2 |
| 667 | Santa Cruz County | 69.1 |
| 668 | Allen County | 69 |
| 668 | Clermont County | 69 |
| 668 | Rio Blanco County | 69 |
| 668 | Yolo County | 69 |
| 672 | Elkhart County | 68.8 |
| 672 | Josephine County | 68.8 |
| 672 | Lewis and Clark County | 68.8 |
| 672 | Loudon County | 68.8 |
| 672 | Polk County | 68.8 |
| 672 | San Francisco County | 68.8 |
| 672 | Sussex County | 68.8 |
| 672 | Trumbull County | 68.8 |
| 680 | Sarpy County | 68.6 |
| 681 | Ellis County | 68.5 |
| 682 | El Paso County | 68.2 |
| 682 | Galveston County | 68.2 |
| 682 | Jackson County | 68.2 |
| 685 | Henry County | 68.1 |
| 685 | Warren County | 68.1 |
| 687 | Escambia County | 67.9 |
| 687 | Garfield County | 67.9 |
| 687 | Kenosha County | 67.9 |
| 687 | Kent County | 67.9 |
| 687 | Washtenaw County | 67.9 |
| 692 | Anne Arundel County | 67.8 |
| 693 | Cache County | 67.7 |
| 693 | Cobb County | 67.7 |
| 693 | Hamilton County | 67.7 |
| 693 | Morgan County | 67.7 |
| 697 | Harrison County | 67.6 |
| 697 | Palo Alto County | 67.6 |
| 699 | Cedar County | 67.5 |
| 699 | Miami-Dade County | 67.5 |
| 701 | Perry County | 67.4 |
| 701 | Ramsey County | 67.4 |
| 703 | Florence County | 67.3 |
| 704 | Bay County | 67.2 |
| 704 | Sumner County | 67.2 |
| 706 | Albany County | 67.1 |
| 706 | Middlesex County | 67.1 |
| 706 | Richland County | 67.1 |
| 709 | McMinn County | 66.9 |
| 710 | Guilford County | 66.8 |
| 710 | Marion County | 66.8 |
| 712 | Lee County | 66.7 |
| 712 | Northampton County | 66.7 |
| 712 | Wyoming County | 66.7 |
| 715 | Adams County | 66.6 |
| 715 | Campbell County | 66.6 |
| 717 | Mono County | 66.3 |
| 717 | Santa Barbara County | 66.3 |
| 717 | Sullivan County | 66.3 |
| 720 | Genesee County | 66.2 |
| 721 | Lemhi County | 65.8 |
| 721 | Mercer County | 65.8 |
| 723 | Black Hawk County | 65.6 |
| 723 | Northampton County | 65.6 |
| 725 | Dane County | 65.5 |
| 725 | Davis County | 65.5 |
| 725 | Denton County | 65.5 |
| 725 | Wyandotte County | 65.5 |
| 729 | Howard County | 65.4 |
| 729 | Mesa County | 65.4 |
| 729 | Washington County | 65.4 |
| 732 | Arkansas County | 65.3 |
| 733 | Contra Costa County | 65.2 |
| 733 | Jefferson County | 65.2 |
| 733 | Medina County | 65.2 |
| 733 | Muscatine County | 65.2 |
| 733 | Richmond city | 65.2 |
| 733 | Worcester County | 65.2 |
| 739 | Lenawee County | 65.1 |
| 740 | Cumberland County | 65 |
| 740 | Jackson County | 65 |
| 742 | Bell County | 64.9 |
| 743 | Butler County | 64.8 |
| 743 | Edgefield County | 64.8 |
| 743 | Peoria County | 64.8 |
| 746 | Idaho County | 64.7 |
| 746 | Porter County | 64.7 |
| 748 | Henry County | 64.5 |
| 748 | Plumas County | 64.5 |
| 750 | Mahoning County | 64.4 |
| 751 | Kleberg County | 64.1 |
| 751 | Pierce County | 64.1 |
| 751 | Prince George's County | 64.1 |
| 751 | Queens County | 64.1 |
| 755 | Harford County | 63.8 |
| 755 | Linn County | 63.8 |
| 755 | Lucas County | 63.8 |
| 755 | Orange County | 63.8 |
| 759 | Jersey County | 63.7 |
| 760 | Baltimore County | 63.6 |
| 760 | Dauphin County | 63.6 |
| 760 | Jackson County | 63.6 |
| 760 | Mercer County | 63.6 |
| 760 | Monroe County | 63.6 |
| 760 | York County | 63.6 |
| 766 | Fayette County | 63.5 |
| 767 | Dubois County | 63.3 |
| 768 | Columbia County | 63.1 |
| 769 | Berks County | 63 |
| 769 | Dewey County | 63 |
| 769 | Klamath County | 63 |
| 769 | Lexington County | 63 |
| 773 | Santa Rosa County | 62.9 |
| 773 | Sullivan County | 62.9 |
| 775 | Cambria County | 62.7 |
| 775 | Vanderburgh County | 62.7 |
| 777 | Blair County | 62.5 |
| 777 | Carter County | 62.5 |
| 777 | Nowata County | 62.5 |
| 780 | Snohomish County | 62.4 |
| 781 | Clear Creek County | 62.2 |
| 782 | Duchesne County | 61.9 |
| 782 | Inyo County | 61.9 |
| 782 | Solano County | 61.9 |
| 782 | Yuma County | 61.9 |
| 786 | Johnston County | 61.7 |
| 786 | Sangamon County | 61.7 |
| 788 | Champaign County | 61.6 |
| 788 | Clark County | 61.6 |
| 788 | Edmonson County | 61.6 |
| 788 | Shoshone County | 61.6 |
| 792 | Suffolk County | 61.4 |
| 793 | Chester County | 61.3 |
| 794 | Ottawa County | 61.2 |
| 794 | Rock Island County | 61.2 |
| 796 | Blount County | 61.1 |
| 796 | Boise County | 61.1 |
| 796 | Buchanan County | 61.1 |
| 796 | Linn County | 61.1 |
| 796 | Pinellas County | 61.1 |
| 796 | Stevens County | 61.1 |
| 802 | DeSoto County | 61 |
| 803 | Chatham County | 60.9 |
| 803 | Douglas County | 60.9 |
| 805 | Arapahoe County | 60.8 |
| 805 | Lebanon County | 60.8 |
| 805 | Providence County | 60.8 |
| 808 | Whitley County | 60.5 |
| 809 | Daviess County | 60.4 |
| 810 | Comanche County | 60.3 |
| 810 | Pittsburg County | 60.3 |
| 812 | Ashley County | 60 |
| 812 | Neosho County | 60 |
| 812 | New York County | 60 |
| 815 | Baltimore city | 59.8 |
| 815 | Tippecanoe County | 59.8 |
| 817 | Bibb County | 59.7 |
| 817 | Leon County | 59.7 |
| 819 | Catawba County | 59.6 |
| 820 | St. Clair County | 59.5 |
| 820 | St. Joseph County | 59.5 |
| 820 | Utah County | 59.5 |
| 823 | Hamilton County | 59.3 |
| 824 | Lane County | 59.2 |
| 824 | Madison County | 59.2 |
| 824 | Shawnee County | 59.2 |
| 824 | Spartanburg County | 59.2 |
| 828 | Knox County | 58.8 |
| 829 | Broward County | 58.7 |
| 829 | Forrest County | 58.7 |
| 829 | Grant County | 58.7 |
| 832 | Hamilton County | 58.6 |
| 832 | Washoe County | 58.6 |
| 834 | Warren County | 58.3 |
| 835 | Bronx County | 58.1 |
| 835 | Crittenden County | 58.1 |
| 835 | Eddy County | 58.1 |
| 835 | Lafayette Parish | 58.1 |
| 839 | Greenville County | 57.8 |
| 839 | Hudson County | 57.8 |
| 839 | Waukesha County | 57.8 |
| 842 | Johnson County | 57.7 |
| 843 | Marshall County | 57.6 |
| 844 | Gila County | 57.5 |
| 844 | Lea County | 57.5 |
| 844 | York County | 57.5 |
| 847 | Muscogee County | 57.4 |
| 848 | Okanogan County | 57.3 |
| 849 | Holmes County | 57.2 |
| 850 | Lowndes County | 57.1 |
| 851 | Cumberland County | 57 |
| 851 | King County | 57 |
| 851 | San Juan County | 57 |
| 854 | Davidson County | 56.9 |
| 854 | Durham County | 56.9 |
| 856 | New Castle County | 56.7 |
| 856 | Pima County | 56.7 |
| 858 | Essex County | 56.4 |
| 858 | Kay County | 56.4 |
| 860 | Fairbanks North Star Borough | 56.2 |
| 860 | Milwaukee County | 56.2 |
| 860 | Santa Clara County | 56.2 |
| 863 | Harney County | 56 |
| 863 | Union County | 56 |
| 865 | DuPage County | 55.7 |
| 866 | Chaffee County | 55.6 |
| 867 | Clayton County | 55.5 |
| 867 | West Baton Rouge Parish | 55.5 |
| 869 | Harrison County | 55.4 |
| 870 | Hillsborough County | 55.3 |
| 870 | San Joaquin County | 55.3 |
| 872 | Preble County | 55.2 |
| 873 | Allen County | 54.8 |
| 873 | Summit County | 54.8 |
| 873 | Sutter County | 54.8 |
| 876 | Livingston Parish | 54.2 |
| 876 | Nueces County | 54.2 |
| 876 | Placer County | 54.2 |
| 879 | Benton County | 54.1 |
| 879 | Bolivar County | 54.1 |
| 881 | Russell County | 53.7 |
| 881 | San Luis Obispo County | 53.7 |
| 883 | District of Columbia | 53.4 |
| 883 | Winnebago County | 53.4 |
| 885 | Hall County | 53.2 |
| 885 | Jefferson County | 53.2 |
| 885 | St. Louis County | 53.2 |
| 888 | Philadelphia County | 52.9 |
| 888 | Washington County | 52.9 |
| 890 | Clinton County | 52.7 |
| 891 | Boulder County | 52.6 |
| 891 | Centre County | 52.6 |
| 891 | Fairfax County | 52.6 |
| 891 | Jackson County | 52.6 |
| 891 | Mariposa County | 52.6 |
| 896 | Madison County | 52.4 |
| 897 | East Baton Rouge Parish | 52.1 |
| 898 | Walker County | 52 |
| 899 | Lincoln County | 51.9 |
| 900 | Benewah County | 51.6 |
| 901 | McCracken County | 51.5 |
| 901 | Tulsa County | 51.5 |
| 903 | McLean County | 51.4 |
| 904 | Park County | 51.3 |
| 905 | Hennepin County | 51.2 |
| 905 | Webb County | 51.2 |
| 907 | Garland County | 50.4 |
| 907 | Hidalgo County | 50.4 |
| 909 | Adams County | 50.1 |
| 909 | Alameda County | 50.1 |
| 909 | Beaver County | 50.1 |
| 909 | Larimer County | 50.1 |
| 913 | Hamilton County | 49.6 |
| 914 | Delaware County | 49.3 |
| 915 | Henderson County | 49.2 |
| 916 | Bowie County | 49 |
| 916 | Will County | 49 |
| 918 | Houston County | 48.9 |
| 919 | Cumberland County | 48.8 |
| 919 | Yakima County | 48.8 |
| 921 | Washington County | 48.5 |
| 922 | Macon County | 48.4 |
| 923 | Merced County | 48.2 |
| 923 | Tarrant County | 48.2 |
| 925 | Lafourche Parish | 48.1 |
| 926 | Forsyth County | 47.9 |
| 926 | Sacramento County | 47.9 |
| 926 | Ventura County | 47.9 |
| 929 | Camden County | 47.4 |
| 929 | DeKalb County | 47.4 |
| 929 | McHenry County | 47.4 |
| 929 | Missoula County | 47.4 |
| 929 | Mobile County | 47.4 |
| 934 | Cameron County | 47.1 |
| 935 | Butte County | 46.8 |
| 935 | Clarke County | 46.8 |
| 937 | Travis County | 46.3 |
| 938 | Scott County | 46 |
| 938 | Stanislaus County | 46 |
| 940 | Dougherty County | 45.8 |
| 940 | Madera County | 45.8 |
| 940 | Union County | 45.8 |
| 943 | Duval County | 45.4 |
| 944 | Montgomery County | 44.7 |
| 945 | Hinds County | 44.1 |
| 945 | Mecklenburg County | 44.1 |
| 945 | Vigo County | 44.1 |
| 948 | Cleveland County | 43.8 |
| 948 | Lancaster County | 43.8 |
| 950 | Richmond County | 43.7 |
| 951 | St. Bernard Parish | 43.6 |
| 952 | Gwinnett County | 43.4 |
| 953 | Franklin County | 43 |
| 953 | Orange County | 43 |
| 953 | Stark County | 43 |
| 953 | Uintah County | 43 |
| 957 | Dallas County | 42.7 |
| 957 | Doña Ana County | 42.7 |
| 957 | Oklahoma County | 42.7 |
| 960 | Shelby County | 41.6 |
| 960 | Weld County | 41.6 |
| 962 | Davidson County | 41.4 |
| 962 | Lake County | 41.4 |
| 964 | Bergen County | 40.8 |
| 965 | Clark County | 40.6 |
| 966 | Pulaski County | 39.7 |
| 967 | Jefferson County | 39.3 |
| 968 | Floyd County | 38.6 |
| 968 | Madison County | 38.6 |
| 968 | Wake County | 38.6 |
| 971 | Denver County | 38.1 |
| 972 | St. Louis city | 37 |
| 973 | Bernalillo County | 36.7 |
| 974 | Salt Lake County | 36.2 |
| 975 | Calcasieu Parish | 35.9 |
| 976 | Clark County | 35.1 |
| 977 | Jefferson County | 34 |
| 978 | Kings County | 33.7 |
| 979 | Fulton County | 33.4 |
| 980 | Bexar County | 32.1 |
| 981 | Cuyahoga County | 31.8 |
| 982 | Fresno County | 31 |
| 983 | Pinal County | 28.5 |
| 984 | El Paso County | 27.4 |
| 985 | Hamilton County | 27.1 |
| 986 | Tulare County | 26.8 |
| 987 | Imperial County | 25.8 |
| 988 | Harris County | 24.9 |
| 988 | Kern County | 24.9 |
| 990 | Jefferson County | 23.3 |
| 991 | Montgomery County | 23 |
| 992 | Wayne County | 22.2 |
| 993 | Cook County | 21.9 |
| 994 | Marion County | 21.4 |
| 995 | Allegheny County | 18.4 |
| 996 | Riverside County | 14.5 |
| 997 | Maricopa County | 13.7 |
| 998 | San Diego County | 10.4 |
| 999 | Los Angeles County | 9.3 |
| 1000 | San Bernardino County | 7.9 |