US counties by share of days with good air quality (US EPA AQI), 2008

Bradley County 100%, the highest of 1050 counties, 2008

Baldwin County: 71.3 %Clay County: 39.1 %Colbert County: 63.2 %DeKalb County: 64.7 %Elmore County: 73.5 %Etowah County: 34.4 %Houston County: 65.7 %Jefferson County: 5.2 %Lawrence County: 54.5 %Madison County: 31.7 %Mobile County: 70.9 %Montgomery County: 35.5 %Morgan County: 62.1 %Russell County: 25.7 %Shelby County: 54.9 %Sumter County: 93.8 %Talladega County: 29.9 %Tuscaloosa County: 68.9 %Walker County: 35 %Aleutians East Borough: 99.1 %Anchorage Municipality: 90.2 %Denali Borough: 98.1 %Fairbanks North Star Borough: 64.7 %Juneau City and Borough: 78.4 %Kenai Peninsula Borough: 99.2 %Matanuska-Susitna Borough: 81.6 %Yukon-Koyukuk Census Area: 100 %Apache County: 88.5 %Cochise County: 62.8 %Coconino County: 65.8 %Gila County: 48.5 %La Paz County: 59 %Maricopa County: 16.9 %Mohave County: 77.8 %Navajo County: 63.2 %Pima County: 52.7 %Pinal County: 15.6 %Santa Cruz County: 45.5 %Yavapai County: 72.7 %Yuma County: 58.1 %Arkansas County: 34.5 %Ashley County: 41.2 %Clark County: 94.5 %Crittenden County: 64.8 %Faulkner County: 40.5 %Garland County: 38.9 %Jackson County: 40.2 %Newton County: 78 %Phillips County: 40.2 %Polk County: 66 %Pope County: 41.5 %Pulaski County: 27 %Sebastian County: 41.2 %Union County: 40 %Washington County: 76 %White County: 48.1 %Alameda County: 27.6 %Amador County: 62.3 %Butte County: 39.6 %Calaveras County: 60.9 %Colusa County: 45.9 %Contra Costa County: 68.3 %Del Norte County: 94.1 %El Dorado County: 56.6 %Fresno County: 6.8 %Glenn County: 46 %Humboldt County: 91.2 %Imperial County: 43.7 %Inyo County: 53.8 %Kern County: 3.6 %Kings County: 13.9 %Lake County: 93.4 %Los Angeles County: 3.3 %Madera County: 62.1 %Marin County: 92.6 %Mariposa County: 25.1 %Mendocino County: 93.2 %Merced County: 47 %Mono County: 81.4 %Monterey County: 89.6 %Napa County: 25.7 %Nevada County: 47.3 %Orange County: 20.2 %Placer County: 34.4 %Plumas County: 42.6 %Riverside County: 6.3 %Sacramento County: 29.5 %San Benito County: 64.6 %San Bernardino County: 19.4 %San Diego County: 8.7 %San Francisco County: 42.6 %San Joaquin County: 42.3 %San Luis Obispo County: 45.4 %San Mateo County: 51.1 %Santa Barbara County: 60.9 %Santa Clara County: 32.8 %Santa Cruz County: 89.1 %Shasta County: 66.7 %Siskiyou County: 89.2 %Solano County: 27.9 %Sonoma County: 88 %Stanislaus County: 19.9 %Sutter County: 41.1 %Tehama County: 62.4 %Trinity County: 82.8 %Tulare County: 12.3 %Tuolumne County: 64.9 %Ventura County: 48.9 %Yolo County: 54.6 %Adams County: 51.6 %Alamosa County: 94.7 %Arapahoe County: 80.5 %Archuleta County: 98.3 %Boulder County: 56.8 %Clear Creek County: 25.7 %Delta County: 96.5 %Denver County: 47.5 %Douglas County: 62.6 %Elbert County: 91.7 %El Paso County: 66.1 %Fremont County: 100 %Garfield County: 50.7 %Gunnison County: 78.4 %Jackson County: 99.1 %Jefferson County: 57.9 %La Plata County: 56.8 %Larimer County: 53.6 %Mesa County: 51.9 %Montezuma County: 65 %Park County: 26 %Pitkin County: 97.5 %Prowers County: 92.6 %Pueblo County: 76.8 %Routt County: 92.6 %San Juan County: 97.4 %San Miguel County: 93.8 %Summit County: 98.2 %Teller County: 24.4 %Weld County: 64.2 %Kent County: 48.5 %New Castle County: 33.3 %Sussex County: 48.8 %District of Columbia: 33.6 %Alachua County: 81.4 %Baker County: 88.6 %Bay County: 72.7 %Brevard County: 54.1 %Broward County: 44.8 %Citrus County: 65.6 %Collier County: 59.9 %Columbia County: 31 %Duval County: 36.6 %Escambia County: 41 %Hamilton County: 40.3 %Highlands County: 93.7 %Hillsborough County: 26.2 %Holmes County: 41.5 %Indian River County: 88 %Lake County: 57.1 %Lee County: 87.4 %Leon County: 19.4 %Liberty County: 91.2 %Manatee County: 78.3 %Marion County: 56.6 %Miami-Dade County: 33.6 %Okaloosa County: 100 %Orange County: 45.4 %Osceola County: 94.4 %Palm Beach County: 78.4 %Pasco County: 84.4 %Pinellas County: 36.1 %Polk County: 51.6 %Putnam County: 98.5 %St. Lucie County: 55.2 %Santa Rosa County: 52.6 %Sarasota County: 60.4 %Seminole County: 83.5 %Volusia County: 51.4 %Wakulla County: 80.4 %Bibb County: 28.8 %Charlton County: 70.8 %Chatham County: 38.3 %Chattooga County: 77.3 %Clarke County: 36.5 %Clayton County: 16.5 %Cobb County: 37.2 %Coffee County: 52.8 %Columbia County: 66 %Coweta County: 37.2 %Dawson County: 68.9 %DeKalb County: 18 %Dougherty County: 21.8 %Douglas County: 66.5 %Fayette County: 75.5 %Floyd County: 24.9 %Fulton County: 12 %Glynn County: 74 %Gwinnett County: 35.4 %Hall County: 20.7 %Henry County: 34.6 %Houston County: 20.2 %Lowndes County: 15 %Murray County: 58.5 %Muscogee County: 33.8 %Paulding County: 39.9 %Pike County: 74.4 %Richmond County: 28.9 %Rockdale County: 73.5 %Spalding County: 100 %Sumter County: 78.9 %Walker County: 17.1 %Walton County: 35.9 %Washington County: 47.6 %Wilkinson County: 29.1 %Hawaii County: 5.1 %Honolulu County: 94.5 %Maui County: 95.7 %Ada County: 53 %Bannock County: 87.6 %Benewah County: 71.9 %Boise County: 61.9 %Bonner County: 99.7 %Bonneville County: 86.8 %Butte County: 81 %Canyon County: 73.2 %Custer County: 93.5 %Franklin County: 87.8 %Idaho County: 93.9 %Kootenai County: 70.9 %Latah County: 92.1 %Lemhi County: 77.7 %Nez Perce County: 87.8 %Power County: 75 %Shoshone County: 36.3 %Twin Falls County: 78.8 %Valley County: 82.6 %Adams County: 89.9 %Champaign County: 74.9 %Clark County: 89.3 %Cook County: 8.2 %DuPage County: 37.4 %Effingham County: 89.2 %Hamilton County: 72.7 %Jackson County: 100 %Jersey County: 73.8 %Jo Daviess County: 89.8 %Kane County: 84.6 %Lake County: 82.5 %LaSalle County: 47.3 %McHenry County: 53 %McLean County: 72.9 %Macon County: 53.4 %Macoupin County: 92.9 %Madison County: 46.7 %Peoria County: 39.3 %Randolph County: 82.1 %Rock Island County: 88.5 %St. Clair County: 42.6 %Sangamon County: 81.1 %Will County: 87 %Winnebago County: 80.9 %Allen County: 24.3 %Boone County: 69.9 %Carroll County: 84.5 %Clark County: 22.5 %Delaware County: 60.9 %Dubois County: 28.1 %Elkhart County: 52.9 %Floyd County: 20 %Gibson County: 40.7 %Greene County: 62.4 %Hamilton County: 62.1 %Hancock County: 63.9 %Hendricks County: 88.2 %Henry County: 37.9 %Howard County: 41.2 %Huntington County: 87.4 %Jackson County: 69.9 %Johnson County: 70.4 %Knox County: 70.1 %Lake County: 20.8 %LaPorte County: 61.3 %Madison County: 36.6 %Marion County: 18 %Morgan County: 62.6 %Perry County: 72.5 %Porter County: 36.1 %Posey County: 77.5 %St. Joseph County: 62 %Shelby County: 69.2 %Spencer County: 33.9 %Tippecanoe County: 37.3 %Vanderburgh County: 24.5 %Vigo County: 39.3 %Wabash County: 88.5 %Warrick County: 67.8 %Washington County: 47.5 %Whitley County: 67.2 %Black Hawk County: 55.7 %Bremer County: 86.4 %Cerro Gordo County: 88.5 %Clinton County: 36.5 %Delaware County: 46.2 %Harrison County: 89.7 %Johnson County: 50 %Lee County: 37.3 %Linn County: 40.2 %Montgomery County: 73.4 %Muscatine County: 41.9 %Palo Alto County: 83 %Polk County: 43.2 %Pottawattamie County: 70.2 %Scott County: 30.1 %Story County: 93.9 %Van Buren County: 76.6 %Warren County: 94.3 %Woodbury County: 52.8 %Wright County: 56.3 %Brown County: 67.2 %Chase County: 70.8 %Ford County: 98.7 %Johnson County: 78.4 %Leavenworth County: 91.5 %Linn County: 75.8 %Montgomery County: 100 %Neosho County: 91.5 %Riley County: 87.8 %Sedgwick County: 72.7 %Shawnee County: 75.1 %Sherman County: 92.2 %Sumner County: 73.2 %Trego County: 81.5 %Wyandotte County: 36.1 %Bell County: 52.1 %Boone County: 85.5 %Boyd County: 42.1 %Bullitt County: 55.3 %Campbell County: 33.9 %Carter County: 57.9 %Christian County: 52.6 %Daviess County: 43.3 %Edmonson County: 66.8 %Fayette County: 46.2 %Franklin County: 37 %Greenup County: 74.7 %Hancock County: 71.3 %Hardin County: 48.3 %Henderson County: 50.8 %Jefferson County: 23.2 %Jessamine County: 63.1 %Kenton County: 50.4 %Livingston County: 81.2 %McCracken County: 49.6 %Madison County: 50.4 %Marshall County: 100 %Morgan County: 75.1 %Ohio County: 54.3 %Oldham County: 71.7 %Perry County: 67.6 %Pike County: 53.5 %Pulaski County: 77.9 %Simpson County: 65.3 %Trigg County: 66.6 %Warren County: 47.8 %Washington County: 72.3 %Ascension Parish: 82.4 %Bossier Parish: 52.7 %Caddo Parish: 66.9 %Calcasieu Parish: 44 %East Baton Rouge Parish: 31.1 %Iberville Parish: 64.5 %Jefferson Parish: 44.4 %Lafayette Parish: 70.5 %Lafourche Parish: 47.1 %Livingston Parish: 49.7 %Orleans Parish: 50.1 %Ouachita Parish: 84.4 %Pointe Coupee Parish: 82.6 %Rapides Parish: 56 %St. Bernard Parish: 32.6 %St. Charles Parish: 90 %St. James Parish: 87 %St. John the Baptist Parish: 89 %St. Tammany Parish: 46.6 %Tangipahoa Parish: 48.7 %Terrebonne Parish: 63.6 %West Baton Rouge Parish: 32.1 %Winn Parish: 61.3 %Androscoggin County: 90 %Aroostook County: 82.5 %Cumberland County: 88.5 %Hancock County: 86.1 %Kennebec County: 91.5 %Knox County: 93.4 %Oxford County: 97.4 %Penobscot County: 93.7 %Sagadahoc County: 88.7 %Washington County: 95.7 %York County: 90.6 %Anne Arundel County: 49.6 %Baltimore County: 33.1 %Calvert County: 58.9 %Carroll County: 71 %Cecil County: 37.2 %Charles County: 61.7 %Dorchester County: 75.2 %Frederick County: 65.4 %Garrett County: 77.5 %Harford County: 53.6 %Kent County: 64.8 %Montgomery County: 52.6 %Prince George's County: 48.6 %Washington County: 58.3 %Worcester County: 63.8 %Baltimore city: 29.2 %Barnstable County: 74.9 %Berkshire County: 56 %Bristol County: 62 %Dukes County: 67.8 %Essex County: 51.6 %Hampden County: 47.8 %Hampshire County: 41.1 %Middlesex County: 84.7 %Norfolk County: 63.1 %Plymouth County: 56.2 %Suffolk County: 21 %Worcester County: 56 %Allegan County: 63.1 %Bay County: 58.8 %Benzie County: 79.2 %Berrien County: 59 %Cass County: 67.8 %Chippewa County: 39.6 %Clinton County: 76.4 %Genesee County: 62.4 %Huron County: 83.6 %Ingham County: 62.7 %Kalamazoo County: 55.9 %Kent County: 47.8 %Keweenaw County: 89.8 %Leelanau County: 87.9 %Lenawee County: 60.4 %Macomb County: 58.8 %Manistee County: 76.3 %Mason County: 73.8 %Missaukee County: 75.1 %Monroe County: 38.5 %Muskegon County: 56.5 %Oakland County: 61.7 %Ottawa County: 48.5 %St. Clair County: 62.2 %Schoolcraft County: 85.4 %Tuscola County: 92.9 %Washtenaw County: 72.8 %Wayne County: 37.2 %Wexford County: 85.6 %Anoka County: 51.1 %Becker County: 80.7 %Carlton County: 95.2 %Cass County: 89.4 %Cook County: 94.2 %Crow Wing County: 69.7 %Dakota County: 57.4 %Goodhue County: 82.9 %Hennepin County: 45.9 %Lake County: 82.5 %Lyon County: 52 %Mille Lacs County: 84.3 %Olmsted County: 43 %Ramsey County: 53.6 %Rock County: 72.3 %St. Louis County: 56.8 %Scott County: 71.7 %Stearns County: 66.1 %Washington County: 77 %Winona County: 66.7 %Wright County: 48.3 %Adams County: 65.2 %Bolivar County: 38.1 %DeSoto County: 38.4 %Forrest County: 29.2 %Grenada County: 44.3 %Harrison County: 38.9 %Hinds County: 31.3 %Jackson County: 30.1 %Jones County: 28.1 %Lauderdale County: 34.5 %Lee County: 42.8 %Lowndes County: 35.7 %Webster County: 89.2 %Yalobusha County: 86.4 %Buchanan County: 6 %Cass County: 66.4 %Cedar County: 39.2 %Clay County: 45.1 %Clinton County: 81.3 %Greene County: 69.7 %Jackson County: 38.5 %Jasper County: 96.2 %Jefferson County: 32.4 %Lincoln County: 73.2 %Monroe County: 87.4 %Perry County: 61.2 %St. Charles County: 70.4 %Ste. Genevieve County: 66.8 %St. Louis County: 21 %Stoddard County: 53.2 %Taney County: 69.2 %St. Louis city: 16.1 %Big Horn County: 87.1 %Cascade County: 87.9 %Fergus County: 98.3 %Flathead County: 57.1 %Gallatin County: 73.5 %Jefferson County: 91.3 %Lake County: 98.5 %Lewis and Clark County: 73.6 %Lincoln County: 44.8 %Missoula County: 76.4 %Powell County: 99.1 %Ravalli County: 73.4 %Richland County: 95.2 %Roosevelt County: 95.8 %Rosebud County: 98.3 %Sanders County: 79.5 %Sheridan County: 95.8 %Silver Bow County: 69.6 %Yellowstone County: 87.2 %Cass County: 90 %Dawson County: 96.6 %Douglas County: 9 %Garden County: 97.5 %Hall County: 67.9 %Knox County: 95.3 %Lancaster County: 88.5 %Sarpy County: 51.9 %Scotts Bluff County: 78.1 %Sioux County: 51.6 %Thomas County: 95.5 %Thurston County: 74.5 %Washington County: 63.1 %Churchill County: 89.1 %Clark County: 24 %Douglas County: 100 %Elko County: 97.2 %Lyon County: 79.3 %Mineral County: 97.4 %Nye County: 94.7 %Washoe County: 59.6 %White Pine County: 64.8 %Carson City: 81.6 %Belknap County: 86.9 %Cheshire County: 69.3 %Coos County: 68.8 %Grafton County: 91.5 %Hillsborough County: 73.2 %Merrimack County: 74.7 %Rockingham County: 82.8 %Sullivan County: 84.4 %Atlantic County: 55.4 %Bergen County: 27.6 %Burlington County: 100 %Camden County: 45.4 %Cumberland County: 44 %Essex County: 85.9 %Gloucester County: 67 %Hudson County: 22.1 %Hunterdon County: 52.7 %Mercer County: 47 %Middlesex County: 51.9 %Monmouth County: 83.6 %Morris County: 69.4 %Ocean County: 55.1 %Passaic County: 65.3 %Union County: 24.3 %Warren County: 50.9 %Bernalillo County: 24.6 %Catron County: 98.1 %Chaves County: 86.5 %Doña Ana County: 25.7 %Eddy County: 64.8 %Grant County: 91.8 %Lea County: 70.4 %Lincoln County: 93.2 %Los Alamos County: 99.1 %Luna County: 81.7 %McKinley County: 97.1 %Rio Arriba County: 98.2 %Sandoval County: 48.1 %San Juan County: 56.3 %Santa Fe County: 80.6 %Socorro County: 99 %Taos County: 93.4 %Valencia County: 94.5 %Albany County: 45.9 %Bronx County: 24.6 %Chautauqua County: 77 %Chemung County: 91.7 %Dutchess County: 89.7 %Erie County: 25.1 %Essex County: 72.7 %Franklin County: 97 %Hamilton County: 90.3 %Herkimer County: 92.5 %Jefferson County: 86.6 %Kings County: 32.8 %Madison County: 89.8 %Monroe County: 57.9 %Nassau County: 41.5 %New York County: 18 %Niagara County: 42.3 %Oneida County: 50.3 %Onondaga County: 82 %Orange County: 51.9 %Oswego County: 84.5 %Putnam County: 88 %Queens County: 31.1 %Rensselaer County: 89.1 %Richmond County: 37.4 %St. Lawrence County: 84.4 %Saratoga County: 90 %Schenectady County: 95.1 %Steuben County: 61.3 %Suffolk County: 69.1 %Tompkins County: 91.4 %Ulster County: 92.4 %Wayne County: 82.1 %Westchester County: 56.7 %Alamance County: 29.2 %Alexander County: 62.6 %Avery County: 69.1 %Buncombe County: 43.1 %Caldwell County: 65.9 %Carteret County: 94.9 %Caswell County: 34.2 %Catawba County: 24.7 %Chatham County: 63.5 %Cumberland County: 30.9 %Davidson County: 30.2 %Davie County: 57.5 %Duplin County: 46.8 %Durham County: 31.2 %Edgecombe County: 55.3 %Forsyth County: 21.6 %Franklin County: 65 %Gaston County: 26.6 %Graham County: 62.3 %Granville County: 55.6 %Guilford County: 27.4 %Haywood County: 38.4 %Henderson County: 100 %Hyde County: 63.7 %Jackson County: 41.3 %Johnston County: 62.1 %Lenoir County: 57.4 %Lincoln County: 58.9 %McDowell County: 27.6 %Macon County: 97.4 %Martin County: 44.7 %Mecklenburg County: 22.1 %Mitchell County: 47.9 %Montgomery County: 66.2 %New Hanover County: 80.9 %Orange County: 32.2 %Person County: 64.8 %Pitt County: 51.9 %Robeson County: 39.7 %Rockingham County: 56.5 %Rowan County: 25.1 %Swain County: 33.2 %Union County: 62.4 %Wake County: 29.2 %Watauga County: 54.5 %Wayne County: 37.2 %Yancey County: 52.4 %Billings County: 92.1 %Burke County: 94 %Burleigh County: 90.7 %Cass County: 85.2 %Dunn County: 93.7 %McKenzie County: 93.2 %McLean County: 100 %Mercer County: 89.1 %Oliver County: 96.2 %Allen County: 82 %Ashtabula County: 71.2 %Athens County: 77.2 %Butler County: 56.6 %Clark County: 49.4 %Clermont County: 52.3 %Clinton County: 65.6 %Columbiana County: 96.7 %Crawford County: 82.3 %Cuyahoga County: 58.7 %Delaware County: 69 %Fayette County: 81.8 %Franklin County: 57.4 %Geauga County: 72 %Greene County: 51.5 %Hamilton County: 41 %Hancock County: 100 %Jefferson County: 52.5 %Knox County: 72 %Lake County: 68.3 %Lawrence County: 38.4 %Licking County: 69 %Lorain County: 61.6 %Lucas County: 35.5 %Madison County: 66.7 %Mahoning County: 31.1 %Medina County: 56.8 %Miami County: 71.5 %Montgomery County: 27 %Noble County: 76.1 %Portage County: 66.3 %Preble County: 55 %Scioto County: 34.2 %Stark County: 62.8 %Summit County: 61.5 %Trumbull County: 56.6 %Warren County: 43.8 %Washington County: 67.8 %Wood County: 76.6 %Adair County: 83 %Caddo County: 75.9 %Canadian County: 83.1 %Carter County: 70.4 %Cherokee County: 83.6 %Cleveland County: 86.5 %Comanche County: 76.4 %Cotton County: 71.8 %Creek County: 80.3 %Dewey County: 82.5 %Ellis County: 85.6 %Kay County: 71.9 %Lincoln County: 90.8 %McClain County: 81.2 %Mayes County: 72.3 %Muskogee County: 77.3 %Oklahoma County: 58.7 %Ottawa County: 48.1 %Pittsburg County: 77.3 %Sequoyah County: 80.3 %Tulsa County: 31.7 %Baker County: 64.5 %Benton County: 82.2 %Clackamas County: 93.2 %Columbia County: 83.4 %Crook County: 14.3 %Deschutes County: 83.9 %Douglas County: 70.7 %Grant County: 62.2 %Harney County: 49.7 %Jackson County: 51.9 %Jefferson County: 42.9 %Josephine County: 59 %Klamath County: 29.4 %Lake County: 65.2 %Lane County: 46.7 %Linn County: 54.4 %Marion County: 76.1 %Multnomah County: 62.6 %Umatilla County: 65.1 %Union County: 68.2 %Wallowa County: 78.5 %Wasco County: 80.8 %Washington County: 67.5 %Yamhill County: 87.5 %Adams County: 43.8 %Allegheny County: 2.5 %Armstrong County: 66.8 %Beaver County: 65.6 %Berks County: 65.3 %Blair County: 84.1 %Bucks County: 68.5 %Cambria County: 68.3 %Centre County: 47 %Chester County: 49.4 %Clearfield County: 66.2 %Cumberland County: 38.6 %Dauphin County: 35 %Delaware County: 63.1 %Elk County: 86.6 %Erie County: 44.8 %Franklin County: 76.5 %Greene County: 74.5 %Indiana County: 83.5 %Lackawanna County: 51.9 %Lancaster County: 62.8 %Lawrence County: 82.5 %Lehigh County: 82.5 %Luzerne County: 87.4 %Lycoming County: 79.4 %Mercer County: 43.2 %Monroe County: 79.6 %Montgomery County: 66.7 %Northampton County: 39.1 %Perry County: 83.7 %Philadelphia County: 17.2 %Somerset County: 87.8 %Tioga County: 83.6 %Washington County: 38.5 %Westmoreland County: 67.5 %York County: 59.5 %Kent County: 77.3 %Providence County: 52.2 %Washington County: 71.1 %Abbeville County: 61.8 %Aiken County: 66.8 %Anderson County: 79.2 %Berkeley County: 87.2 %Charleston County: 32.2 %Cherokee County: 76.1 %Chesterfield County: 66.9 %Colleton County: 83.1 %Darlington County: 67.8 %Edgefield County: 66.8 %Florence County: 36.5 %Georgetown County: 96.2 %Greenville County: 21.6 %Lexington County: 47.5 %Oconee County: 72.9 %Pickens County: 65.5 %Richland County: 35.2 %Spartanburg County: 32 %York County: 68.5 %Brookings County: 83.8 %Brown County: 73.8 %Codington County: 81.8 %Custer County: 89.1 %Jackson County: 96.4 %Meade County: 91.9 %Minnehaha County: 78.9 %Pennington County: 80.2 %Anderson County: 68.8 %Blount County: 57.9 %Bradley County: 100 %Claiborne County: 81.1 %Davidson County: 22.7 %DeKalb County: 84 %Hamilton County: 29.2 %Haywood County: 78.6 %Jefferson County: 59.3 %Knox County: 52.1 %Lawrence County: 31.6 %Loudon County: 54.5 %McMinn County: 99.4 %Madison County: 100 %Meigs County: 63 %Montgomery County: 32.8 %Putnam County: 100 %Roane County: 100 %Rutherford County: 67.4 %Sevier County: 55.1 %Shelby County: 23.2 %Sullivan County: 76 %Sumner County: 59.2 %Union County: 86.3 %Williamson County: 68.2 %Wilson County: 61.5 %Bexar County: 33.3 %Bowie County: 41 %Brazoria County: 82.5 %Brewster County: 75.8 %Cameron County: 41.2 %Collin County: 74.8 %Culberson County: 92.6 %Dallas County: 33.3 %Denton County: 49.7 %Ector County: 62.6 %Ellis County: 39.1 %El Paso County: 17.5 %Fayette County: 55.6 %Galveston County: 56.8 %Gregg County: 86 %Harris County: 10.7 %Harrison County: 49.6 %Hays County: 83.3 %Hidalgo County: 36.7 %Hood County: 90.3 %Hunt County: 87.2 %Jeff Davis County: 90.4 %Jefferson County: 34.4 %Johnson County: 80.3 %Kaufman County: 48.1 %Kleberg County: 47.3 %Lubbock County: 71.6 %McLennan County: 52.9 %Maverick County: 61.8 %Montgomery County: 47.1 %Nueces County: 48.5 %Orange County: 49.5 %Parker County: 77.5 %Polk County: 89.1 %Potter County: 80.8 %Randall County: 82.1 %Rockwall County: 85.9 %Smith County: 83.5 %Tarrant County: 28.7 %Travis County: 43.7 %Victoria County: 94.1 %Webb County: 41.8 %Wichita County: 71.4 %Box Elder County: 50.4 %Cache County: 27.3 %Davis County: 60.1 %Garfield County: 95.5 %Salt Lake County: 27.9 %San Juan County: 64 %Tooele County: 41.7 %Uintah County: 45.8 %Utah County: 29.2 %Washington County: 60.6 %Wayne County: 95.5 %Weber County: 29.2 %Bennington County: 76 %Chittenden County: 67.8 %Rutland County: 52.5 %Windham County: 100 %Albemarle County: 65.8 %Arlington County: 65 %Caroline County: 74.3 %Carroll County: 100 %Charles City County: 66.3 %Chesterfield County: 53 %Culpeper County: 100 %Fairfax County: 41.5 %Fauquier County: 88.1 %Frederick County: 62.3 %Giles County: 72.8 %Hanover County: 68.5 %Henrico County: 42.7 %King William County: 100 %Loudoun County: 67.8 %Madison County: 71.2 %Page County: 64.3 %Prince Edward County: 93.3 %Prince William County: 85 %Roanoke County: 82.1 %Rockbridge County: 71.3 %Rockingham County: 73.2 %Stafford County: 84.6 %Warren County: 100 %Wythe County: 75.2 %Alexandria city: 89 %Bristol city: 39.2 %Fredericksburg city: 100 %Hampton city: 68.2 %Hopewell city: 100 %Lynchburg city: 50 %Norfolk city: 80.1 %Richmond city: 98.6 %Roanoke city: 41.3 %Salem city: 50 %Suffolk city: 57.5 %Virginia Beach city: 47.7 %Winchester city: 100 %Adams County: 83.6 %Asotin County: 64.9 %Benton County: 72.1 %Chelan County: 56.3 %Clallam County: 66.9 %Clark County: 68.3 %Columbia County: 85.8 %Cowlitz County: 83.9 %Franklin County: 84.2 %Grant County: 77.5 %Grays Harbor County: 72.7 %Jefferson County: 81.1 %King County: 46.7 %Kitsap County: 79.2 %Kittitas County: 73.5 %Klickitat County: 90.2 %Lewis County: 96.6 %Mason County: 78.1 %Okanogan County: 58.6 %Pend Oreille County: 92 %Pierce County: 56.8 %Skagit County: 90.2 %Snohomish County: 54.4 %Spokane County: 56.3 %Stevens County: 50.8 %Thurston County: 70.7 %Walla Walla County: 73 %Whatcom County: 86.1 %Whitman County: 87.4 %Yakima County: 53 %Berkeley County: 55.2 %Brooke County: 71.6 %Cabell County: 52.7 %Gilmer County: 94.4 %Greenbrier County: 75.4 %Hancock County: 65.3 %Harrison County: 30.3 %Kanawha County: 61.4 %Marion County: 24.1 %Marshall County: 21.3 %Monongalia County: 61.6 %Ohio County: 52.8 %Raleigh County: 42.5 %Tucker County: 83.9 %Wood County: 52.7 %Ashland County: 94.2 %Brown County: 44.3 %Columbia County: 83.7 %Dane County: 40.8 %Dodge County: 73.5 %Door County: 83.2 %Florence County: 89.9 %Fond du Lac County: 87.8 %Forest County: 87.3 %Grant County: 33.6 %Jefferson County: 83 %Kenosha County: 60.2 %Kewaunee County: 85.9 %La Crosse County: 73.5 %Manitowoc County: 67.4 %Marathon County: 89.3 %Milwaukee County: 65.3 %Oneida County: 87.2 %Outagamie County: 68.8 %Ozaukee County: 64.5 %Racine County: 85.2 %Rock County: 80.4 %St. Croix County: 77 %Sauk County: 77.8 %Sheboygan County: 78.8 %Taylor County: 79.9 %Vernon County: 90 %Vilas County: 86 %Walworth County: 79.6 %Washington County: 92.6 %Waukesha County: 72.1 %Albany County: 51.9 %Campbell County: 48.6 %Carbon County: 74.2 %Converse County: 81 %Crook County: 79.6 %Fremont County: 65.8 %Johnson County: 98.1 %Laramie County: 94.2 %Lincoln County: 92.6 %Natrona County: 100 %Park County: 88.3 %Platte County: 93.2 %Sheridan County: 87.6 %Sublette County: 55.7 %Sweetwater County: 62.8 %Teton County: 83.9 %Uinta County: 85.2 %

Boundaries: U.S. Census Bureau cartographic boundary files.