US counties by median Air Quality Index (US EPA), 2009

Kern County 97, the highest of 1052 counties, 2009

Baldwin County: 38 indexClay County: 44 indexColbert County: 51 indexDeKalb County: 38 indexElmore County: 36 indexEtowah County: 53 indexHouston County: 41 indexJefferson County: 60 indexLawrence County: 38 indexMadison County: 41 indexMobile County: 37 indexMontgomery County: 53 indexMorgan County: 54 indexRussell County: 54 indexShelby County: 41 indexSumter County: 31 indexTalladega County: 52 indexTuscaloosa County: 46 indexWalker County: 52 indexAleutians East Borough: 13 indexAnchorage Municipality: 37 indexDenali Borough: 34 indexFairbanks North Star Borough: 46 indexJuneau City and Borough: 29 indexKenai Peninsula Borough: 8 indexMatanuska-Susitna Borough: 19 indexYukon-Koyukuk Census Area: 8 indexApache County: 19 indexCochise County: 46 indexCoconino County: 46 indexGila County: 48 indexLa Paz County: 49 indexMaricopa County: 63 indexMohave County: 23 indexNavajo County: 44 indexPima County: 49 indexPinal County: 77 indexSanta Cruz County: 47 indexYavapai County: 43 indexYuma County: 45 indexArkansas County: 51 indexAshley County: 51 indexClark County: 32 indexCrittenden County: 39 indexFaulkner County: 52 indexGarland County: 51 indexJackson County: 48 indexNewton County: 39 indexPhillips County: 51 indexPolk County: 41 indexPope County: 53 indexPulaski County: 54 indexSebastian County: 53 indexUnion County: 52 indexWashington County: 39 indexWhite County: 51 indexAlameda County: 56 indexAmador County: 38 indexButte County: 55 indexCalaveras County: 42 indexColusa County: 51 indexContra Costa County: 42 indexDel Norte County: 14 indexEl Dorado County: 44 indexFresno County: 80 indexGlenn County: 46 indexHumboldt County: 28 indexImperial County: 58 indexInyo County: 48 indexKern County: 97 indexKings County: 73 indexLake County: 34 indexLos Angeles County: 80 indexMadera County: 40 indexMarin County: 32 indexMariposa County: 56 indexMendocino County: 58 indexMerced County: 50 indexMono County: 18 indexMonterey County: 33 indexNapa County: 46 indexNevada County: 44 indexOrange County: 61 indexPlacer County: 57 indexPlumas County: 53 indexRiverside County: 87 indexSacramento County: 58 indexSan Benito County: 41 indexSan Bernardino County: 84 indexSan Diego County: 69 indexSan Francisco County: 55 indexSan Joaquin County: 45 indexSan Luis Obispo County: 56 indexSan Mateo County: 50 indexSanta Barbara County: 45 indexSanta Clara County: 51 indexSanta Cruz County: 31 indexShasta County: 44 indexSiskiyou County: 31 indexSolano County: 48 indexSonoma County: 33 indexStanislaus County: 61 indexSutter County: 54 indexTehama County: 43 indexTrinity County: 17 indexTulare County: 84 indexTuolumne County: 42 indexVentura County: 51 indexYolo County: 46 indexAdams County: 47 indexAlamosa County: 19 indexArapahoe County: 44 indexArchuleta County: 19 indexBoulder County: 45 indexChaffee County: 49 indexClear Creek County: 50 indexDelta County: 22 indexDenver County: 47 indexDouglas County: 44 indexElbert County: 20 indexEl Paso County: 43 indexFremont County: 13 indexGarfield County: 45 indexGunnison County: 45 indexJackson County: 9 indexJefferson County: 44 indexLa Plata County: 46 indexLarimer County: 49 indexLogan County: 47 indexMesa County: 48 indexMontezuma County: 48 indexMorgan County: 46 indexPark County: 50 indexPitkin County: 49 indexProwers County: 22 indexPueblo County: 45 indexRoutt County: 17 indexSan Juan County: 12 indexSan Miguel County: 12 indexSummit County: 13 indexWeld County: 44 indexKent County: 44 indexNew Castle County: 53 indexSussex County: 46 indexDistrict of Columbia: 55 indexAlachua County: 41 indexBaker County: 32 indexBay County: 47 indexBrevard County: 46 indexBroward County: 48 indexCitrus County: 39 indexCollier County: 42 indexColumbia County: 51 indexDuval County: 52 indexEscambia County: 52 indexHamilton County: 50 indexHighlands County: 33 indexHillsborough County: 54 indexHolmes County: 50 indexIndian River County: 37 indexLake County: 46 indexLee County: 43 indexLeon County: 54 indexLiberty County: 33 indexManatee County: 31 indexMarion County: 47 indexMiami-Dade County: 52 indexOkaloosa County: 36 indexOrange County: 51 indexOsceola County: 34 indexPalm Beach County: 42 indexPasco County: 38 indexPinellas County: 51 indexPolk County: 47 indexPutnam County: 17 indexSt. Lucie County: 46 indexSanta Rosa County: 48 indexSarasota County: 57 indexSeminole County: 39 indexVolusia County: 46 indexWakulla County: 35 indexBibb County: 55 indexCharlton County: 38 indexChatham County: 52 indexChattooga County: 35 indexClarke County: 52 indexClayton County: 55 indexCobb County: 54 indexCoffee County: 50 indexColumbia County: 38 indexCoweta County: 51 indexDawson County: 38 indexDeKalb County: 57 indexDougherty County: 57 indexDouglas County: 38 indexFloyd County: 57 indexFulton County: 59 indexGlynn County: 38 indexGwinnett County: 54 indexHall County: 55 indexHenry County: 52 indexHouston County: 57 indexLowndes County: 56 indexMurray County: 41 indexMuscogee County: 52 indexPaulding County: 48 indexPike County: 37 indexRichmond County: 53 indexRockdale County: 29 indexSumter County: 35 indexWalker County: 55 indexWashington County: 52 indexWilkinson County: 52 indexHawaii County: 66 indexHonolulu County: 40 indexMaui County: 17 indexAda County: 54 indexBannock County: 26 indexBenewah County: 42 indexBoise County: 30 indexBonner County: 12 indexButte County: 42 indexCanyon County: 21 indexCuster County: 9 indexFranklin County: 26 indexIdaho County: 19 indexKootenai County: 40 indexLatah County: 18 indexLemhi County: 33 indexNez Perce County: 23 indexPower County: 19 indexShoshone County: 56 indexTwin Falls County: 36 indexValley County: 31 indexAdams County: 34 indexChampaign County: 39 indexClark County: 36 indexCook County: 63 indexDuPage County: 55 indexEffingham County: 41 indexHamilton County: 44 indexJackson County: 14 indexJersey County: 40 indexJo Daviess County: 32 indexKane County: 32 indexLake County: 34 indexLaSalle County: 51 indexMcHenry County: 52 indexMcLean County: 38 indexMacon County: 52 indexMacoupin County: 34 indexMadison County: 58 indexPeoria County: 52 indexRandolph County: 33 indexRock Island County: 29 indexSt. Clair County: 49 indexSangamon County: 33 indexWill County: 33 indexWinnebago County: 34 indexAllen County: 63 indexBoone County: 44 indexCarroll County: 40 indexClark County: 57 indexDelaware County: 46 indexDubois County: 57 indexElkhart County: 41 indexFloyd County: 59 indexGibson County: 54 indexGreene County: 44 indexHamilton County: 44 indexHancock County: 44 indexHendricks County: 37 indexHenry County: 52 indexHoward County: 53 indexHuntington County: 39 indexJackson County: 40 indexJohnson County: 44 indexKnox County: 39 indexLake County: 57 indexLaPorte County: 43 indexMadison County: 45 indexMarion County: 61 indexMonroe County: 55 indexMorgan County: 43 indexPerry County: 41 indexPorter County: 57 indexPosey County: 41 indexSt. Joseph County: 54 indexShelby County: 44 indexSpencer County: 56 indexTippecanoe County: 55 indexVanderburgh County: 53 indexVigo County: 44 indexWabash County: 33 indexWarrick County: 42 indexWashington County: 49 indexWhitley County: 21 indexBlack Hawk County: 52 indexBremer County: 36 indexCerro Gordo County: 23 indexClinton County: 56 indexDelaware County: 14 indexHarrison County: 40 indexJohnson County: 53 indexLee County: 52 indexLinn County: 52 indexMontgomery County: 39 indexMuscatine County: 55 indexPalo Alto County: 39 indexPolk County: 49 indexPottawattamie County: 31 indexScott County: 56 indexStory County: 35 indexVan Buren County: 39 indexWarren County: 36 indexWoodbury County: 42 indexWright County: 47 indexBrown County: 35 indexChase County: 34 indexFord County: 15 indexJohnson County: 38 indexLeavenworth County: 33 indexLinn County: 38 indexMontgomery County: 16 indexNeosho County: 16 indexRiley County: 37 indexSedgwick County: 41 indexShawnee County: 37 indexSherman County: 19 indexSumner County: 39 indexTrego County: 39 indexWyandotte County: 49 indexBell County: 43 indexBoone County: 36 indexBoyd County: 51 indexBullitt County: 44 indexCampbell County: 47 indexCarter County: 41 indexChristian County: 44 indexDaviess County: 52 indexEdmonson County: 38 indexFayette County: 51 indexFranklin County: 52 indexGreenup County: 36 indexHancock County: 40 indexHardin County: 48 indexHenderson County: 49 indexJefferson County: 40 indexJessamine County: 39 indexKenton County: 47 indexLivingston County: 39 indexMcCracken County: 48 indexMadison County: 52 indexMarshall County: 13 indexMorgan County: 37 indexOhio County: 51 indexOldham County: 39 indexPerry County: 41 indexPike County: 44 indexPulaski County: 37 indexSimpson County: 40 indexTrigg County: 40 indexWarren County: 46 indexWashington County: 37 indexAscension Parish: 35 indexBossier Parish: 46 indexCaddo Parish: 38 indexCalcasieu Parish: 51 indexEast Baton Rouge Parish: 53 indexIberville Parish: 43 indexJefferson Parish: 50 indexLafayette Parish: 42 indexLafourche Parish: 45 indexLivingston Parish: 47 indexOrleans Parish: 52 indexOuachita Parish: 35 indexPointe Coupee Parish: 38 indexRapides Parish: 44 indexSt. Bernard Parish: 55 indexSt. Charles Parish: 34 indexSt. James Parish: 34 indexSt. John the Baptist Parish: 35 indexSt. Tammany Parish: 46 indexTangipahoa Parish: 45 indexTerrebonne Parish: 42 indexWest Baton Rouge Parish: 55 indexWinn Parish: 39 indexAndroscoggin County: 31 indexAroostook County: 35 indexCumberland County: 33 indexHancock County: 35 indexKennebec County: 31 indexKnox County: 35 indexOxford County: 29 indexPenobscot County: 31 indexSagadahoc County: 34 indexWashington County: 32 indexYork County: 33 indexAnne Arundel County: 54 indexBaltimore County: 54 indexCalvert County: 42 indexCarroll County: 39 indexCecil County: 52 indexCharles County: 42 indexDorchester County: 36 indexFrederick County: 40 indexGarrett County: 40 indexHarford County: 46 indexKent County: 42 indexMontgomery County: 52 indexPrince George's County: 53 indexWashington County: 43 indexWorcester County: 38 indexBaltimore city: 55 indexBarnstable County: 34 indexBerkshire County: 49 indexBristol County: 39 indexDukes County: 34 indexEssex County: 47 indexHampden County: 52 indexHampshire County: 44 indexMiddlesex County: 33 indexNorfolk County: 38 indexPlymouth County: 41 indexSuffolk County: 52 indexWorcester County: 43 indexAllegan County: 44 indexBay County: 36 indexBenzie County: 39 indexBerrien County: 44 indexCass County: 44 indexChippewa County: 61 indexClinton County: 38 indexEmmet County: 25 indexGenesee County: 43 indexHuron County: 38 indexIngham County: 43 indexKalamazoo County: 45 indexKent County: 41 indexKeweenaw County: 14 indexLenawee County: 46 indexMacomb County: 44 indexManistee County: 38 indexMason County: 38 indexMissaukee County: 38 indexMonroe County: 51 indexMuskegon County: 43 indexOakland County: 43 indexOttawa County: 42 indexSt. Clair County: 41 indexSchoolcraft County: 31 indexTuscola County: 33 indexWashtenaw County: 37 indexWayne County: 54 indexWexford County: 31 indexAnoka County: 52 indexBecker County: 34 indexCarlton County: 33 indexCass County: 27 indexCook County: 9 indexCrow Wing County: 40 indexDakota County: 48 indexGoodhue County: 41 indexHennepin County: 48 indexLake County: 36 indexLyon County: 48 indexMille Lacs County: 33 indexOlmsted County: 49 indexRamsey County: 51 indexRock County: 33 indexSt. Louis County: 47 indexScott County: 40 indexStearns County: 42 indexWashington County: 41 indexWinona County: 29 indexWright County: 46 indexAdams County: 41 indexBolivar County: 51 indexDeSoto County: 52 indexForrest County: 54 indexGrenada County: 49 indexHancock County: 41 indexHarrison County: 53 indexHinds County: 53 indexJackson County: 39 indexJones County: 55 indexLauderdale County: 53 indexLee County: 52 indexLowndes County: 48 indexYalobusha County: 33 indexAndrew County: 39 indexBoone County: 37 indexBuchanan County: 56 indexCallaway County: 38 indexCass County: 42 indexCedar County: 46 indexClay County: 51 indexClinton County: 41 indexGreene County: 39 indexJackson County: 44 indexJasper County: 36 indexJefferson County: 54 indexLincoln County: 41 indexMonroe County: 37 indexPerry County: 44 indexSt. Charles County: 31 indexSte. Genevieve County: 38 indexSt. Louis County: 58 indexStoddard County: 42 indexTaney County: 34 indexSt. Louis city: 58 indexCascade County: 42 indexFergus County: 13 indexFlathead County: 54 indexGallatin County: 44 indexGlacier County: 42 indexLake County: 12 indexLewis and Clark County: 35 indexLincoln County: 52 indexMissoula County: 43 indexPowell County: 12 indexRavalli County: 31 indexRichland County: 39 indexRoosevelt County: 17 indexRosebud County: 17 indexSanders County: 28 indexSheridan County: 18 indexSilver Bow County: 35 indexYellowstone County: 22 indexCass County: 20 indexDawson County: 18 indexDouglas County: 48 indexGarden County: 16 indexHall County: 34 indexKnox County: 33 indexLancaster County: 29 indexSarpy County: 39 indexScotts Bluff County: 23 indexSioux County: 45 indexThomas County: 19 indexWashington County: 39 indexChurchill County: 43 indexClark County: 58 indexDouglas County: 9 indexElko County: 20 indexLyon County: 39 indexMineral County: 10 indexNye County: 26 indexWashoe County: 47 indexWhite Pine County: 45 indexCarson City: 45 indexBelknap County: 33 indexCheshire County: 45 indexCoos County: 40 indexGrafton County: 38 indexHillsborough County: 36 indexMerrimack County: 36 indexRockingham County: 33 indexAtlantic County: 44 indexBergen County: 56 indexBurlington County: 5 indexCamden County: 45 indexCumberland County: 52 indexEssex County: 38 indexGloucester County: 36 indexHudson County: 54 indexHunterdon County: 46 indexMercer County: 46 indexMiddlesex County: 42 indexMonmouth County: 29 indexMorris County: 35 indexOcean County: 44 indexPassaic County: 38 indexUnion County: 55 indexWarren County: 41 indexBernalillo County: 57 indexCatron County: 14 indexChaves County: 28 indexDoña Ana County: 58 indexEddy County: 42 indexGrant County: 41 indexLea County: 38 indexLincoln County: 15 indexLos Alamos County: 15 indexLuna County: 35 indexMcKinley County: 15 indexRio Arriba County: 12 indexSandoval County: 46 indexSan Juan County: 43 indexSanta Fe County: 42 indexSocorro County: 17 indexTaos County: 20 indexValencia County: 34 indexAlbany County: 46 indexBronx County: 55 indexChautauqua County: 38 indexChemung County: 33 indexDutchess County: 31 indexErie County: 54 indexEssex County: 42 indexFranklin County: 24 indexHamilton County: 34 indexHerkimer County: 34 indexJefferson County: 34 indexKings County: 52 indexMadison County: 34 indexMonroe County: 41 indexNassau County: 46 indexNew York County: 57 indexNiagara County: 48 indexOneida County: 36 indexOnondaga County: 34 indexOrange County: 43 indexOswego County: 34 indexPutnam County: 32 indexQueens County: 52 indexRensselaer County: 34 indexRichmond County: 50 indexRockland County: 35 indexSt. Lawrence County: 27 indexSaratoga County: 34 indexSchenectady County: 29 indexSteuben County: 40 indexSuffolk County: 40 indexTompkins County: 34 indexUlster County: 36 indexWayne County: 34 indexWestchester County: 42 indexAlamance County: 53 indexAlexander County: 38 indexAvery County: 40 indexBuncombe County: 50 indexCaldwell County: 37 indexCarteret County: 35 indexCaswell County: 52 indexCatawba County: 53 indexChatham County: 39 indexCumberland County: 53 indexDavidson County: 53 indexDavie County: 41 indexDuplin County: 39 indexDurham County: 52 indexEdgecombe County: 42 indexForsyth County: 55 indexFranklin County: 39 indexGaston County: 52 indexGraham County: 44 indexGranville County: 43 indexGuilford County: 52 indexHaywood County: 45 indexHenderson County: 12 indexHyde County: 34 indexJackson County: 44 indexJohnston County: 42 indexLenoir County: 41 indexLincoln County: 40 indexMcDowell County: 50 indexMacon County: 33 indexMartin County: 46 indexMecklenburg County: 55 indexMitchell County: 48 indexMontgomery County: 38 indexNew Hanover County: 42 indexPerson County: 42 indexPitt County: 42 indexRobeson County: 48 indexRockingham County: 42 indexRowan County: 53 indexSwain County: 49 indexUnion County: 42 indexWake County: 54 indexWatauga County: 41 indexWayne County: 51 indexYancey County: 44 indexBillings County: 35 indexBurke County: 33 indexBurleigh County: 39 indexCass County: 34 indexDunn County: 33 indexMcKenzie County: 35 indexMercer County: 34 indexOliver County: 34 indexWard County: 5 indexAllen County: 41 indexAshtabula County: 40 indexAthens County: 32 indexButler County: 45 indexClark County: 47 indexClermont County: 48 indexClinton County: 44 indexColumbiana County: 23 indexCrawford County: 34 indexCuyahoga County: 43 indexDelaware County: 41 indexFayette County: 35 indexFranklin County: 43 indexGeauga County: 39 indexGreene County: 47 indexHamilton County: 58 indexHancock County: 19 indexJefferson County: 45 indexKnox County: 39 indexLake County: 38 indexLawrence County: 48 indexLicking County: 42 indexLorain County: 41 indexLucas County: 45 indexMadison County: 41 indexMahoning County: 45 indexMedina County: 47 indexMiami County: 41 indexMontgomery County: 48 indexNoble County: 40 indexPortage County: 40 indexPreble County: 46 indexScioto County: 23 indexStark County: 55 indexSummit County: 55 indexTrumbull County: 41 indexWarren County: 50 indexWashington County: 41 indexWood County: 40 indexAdair County: 46 indexCaddo County: 37 indexCanadian County: 38 indexCarter County: 46 indexCherokee County: 38 indexCleveland County: 53 indexComanche County: 56 indexCreek County: 39 indexDewey County: 47 indexEllis County: 24 indexKay County: 57 indexLincoln County: 36 indexLove County: 41 indexMcClain County: 38 indexMayes County: 44 indexMuskogee County: 36 indexOklahoma County: 54 indexOttawa County: 51 indexPittsburg County: 53 indexSequoyah County: 37 indexTulsa County: 58 indexBaker County: 39 indexBenton County: 26 indexClackamas County: 32 indexColumbia County: 34 indexCrook County: 36 indexDeschutes County: 35 indexDouglas County: 37 indexGrant County: 39 indexHarney County: 39 indexJackson County: 45 indexJefferson County: 37 indexJosephine County: 37 indexKlamath County: 52 indexLake County: 34 indexLane County: 52 indexLinn County: 44 indexMarion County: 36 indexMultnomah County: 43 indexUmatilla County: 42 indexUnion County: 36 indexWallowa County: 31 indexWasco County: 30 indexWashington County: 40 indexYamhill County: 24 indexAdams County: 53 indexAllegheny County: 65 indexArmstrong County: 49 indexBeaver County: 57 indexBerks County: 52 indexBlair County: 27 indexBucks County: 51 indexCambria County: 56 indexCentre County: 47 indexChester County: 58 indexClearfield County: 38 indexCumberland County: 57 indexDauphin County: 54 indexDelaware County: 56 indexElk County: 35 indexErie County: 47 indexFranklin County: 37 indexGreene County: 42 indexIndiana County: 37 indexLackawanna County: 47 indexLancaster County: 54 indexLawrence County: 29 indexLehigh County: 25 indexLuzerne County: 26 indexLycoming County: 33 indexMercer County: 53 indexMonroe County: 34 indexMontgomery County: 51 indexNorthampton County: 53 indexPerry County: 24 indexPhiladelphia County: 56 indexSomerset County: 33 indexTioga County: 38 indexWashington County: 58 indexWestmoreland County: 56 indexYork County: 54 indexKent County: 35 indexProvidence County: 44 indexWashington County: 41 indexAbbeville County: 34 indexAiken County: 38 indexAnderson County: 35 indexBerkeley County: 30 indexCharleston County: 53 indexCherokee County: 33 indexChesterfield County: 41 indexColleton County: 35 indexDarlington County: 35 indexEdgefield County: 39 indexFlorence County: 52 indexGeorgetown County: 23 indexGreenville County: 55 indexHorry County: 22 indexLexington County: 53 indexOconee County: 39 indexPickens County: 36 indexRichland County: 51 indexSpartanburg County: 53 indexYork County: 31 indexBrookings County: 34 indexBrown County: 39 indexCodington County: 22 indexCuster County: 38 indexJackson County: 34 indexMeade County: 37 indexMinnehaha County: 46 indexPennington County: 37 indexUnion County: 45 indexAnderson County: 38 indexBlount County: 43 indexBradley County: 11 indexClaiborne County: 34 indexDavidson County: 54 indexDeKalb County: 35 indexHamilton County: 54 indexJefferson County: 40 indexKnox County: 39 indexLawrence County: 53 indexLoudon County: 40 indexMcMinn County: 14 indexMadison County: 11 indexMeigs County: 41 indexMontgomery County: 51 indexRoane County: 20 indexRutherford County: 39 indexSevier County: 47 indexShelby County: 55 indexSullivan County: 34 indexSumner County: 42 indexUnion County: 20 indexWilliamson County: 39 indexWilson County: 40 indexBell County: 36 indexBexar County: 54 indexBowie County: 51 indexBrazoria County: 35 indexBrewster County: 44 indexCameron County: 52 indexCollin County: 38 indexCulberson County: 21 indexDallas County: 55 indexDenton County: 51 indexEctor County: 41 indexEllis County: 52 indexEl Paso County: 58 indexFayette County: 44 indexGalveston County: 48 indexGregg County: 36 indexHarris County: 60 indexHarrison County: 46 indexHays County: 36 indexHidalgo County: 52 indexHood County: 36 indexHunt County: 35 indexJeff Davis County: 26 indexJefferson County: 52 indexJohnson County: 37 indexKaufman County: 49 indexKleberg County: 52 indexLubbock County: 37 indexMcLennan County: 48 indexMaverick County: 42 indexMontgomery County: 53 indexNavarro County: 51 indexNueces County: 51 indexOrange County: 41 indexParker County: 38 indexPolk County: 38 indexPotter County: 31 indexRandall County: 40 indexRockwall County: 38 indexSmith County: 38 indexTarrant County: 55 indexTravis County: 50 indexVictoria County: 31 indexWebb County: 51 indexWichita County: 34 indexBox Elder County: 49 indexCache County: 55 indexDavis County: 44 indexGarfield County: 12 indexSalt Lake County: 58 indexSan Juan County: 48 indexTooele County: 54 indexUintah County: 47 indexUtah County: 54 indexWashington County: 46 indexWayne County: 13 indexWeber County: 57 indexBennington County: 38 indexChittenden County: 41 indexRutland County: 42 indexAlbemarle County: 41 indexArlington County: 39 indexCaroline County: 39 indexCarroll County: 11 indexCharles City County: 36 indexChesterfield County: 43 indexCulpeper County: 15 indexFairfax County: 51 indexFauquier County: 35 indexFrederick County: 43 indexGiles County: 40 indexHanover County: 40 indexHenrico County: 49 indexKing William County: 14 indexLoudoun County: 36 indexMadison County: 40 indexPage County: 41 indexPrince Edward County: 35 indexPrince William County: 27 indexRoanoke County: 31 indexRockbridge County: 37 indexRockingham County: 37 indexStafford County: 39 indexWarren County: 14 indexWythe County: 38 indexAlexandria city: 33 indexBristol city: 49 indexFredericksburg city: 14 indexHampton city: 5 indexHopewell city: 14 indexLynchburg city: 44 indexNewport News city: 38 indexNorfolk city: 27 indexRichmond city: 21 indexRoanoke city: 46 indexSalem city: 51 indexSuffolk city: 40 indexVirginia Beach city: 46 indexWinchester city: 16 indexAdams County: 28 indexAsotin County: 41 indexBenton County: 32 indexChelan County: 36 indexClallam County: 42 indexClark County: 46 indexColumbia County: 27 indexCowlitz County: 27 indexFranklin County: 29 indexGrant County: 32 indexGrays Harbor County: 37 indexJefferson County: 33 indexKing County: 58 indexKitsap County: 33 indexKittitas County: 33 indexKlickitat County: 28 indexLewis County: 7 indexMason County: 29 indexOkanogan County: 44 indexPend Oreille County: 24 indexPierce County: 48 indexSkagit County: 28 indexSnohomish County: 49 indexSpokane County: 47 indexStevens County: 42 indexThurston County: 34 indexWalla Walla County: 35 indexWhatcom County: 33 indexWhitman County: 31 indexYakima County: 42 indexBerkeley County: 45 indexBrooke County: 19 indexCabell County: 43 indexGilmer County: 31 indexGreenbrier County: 39 indexHancock County: 37 indexHarrison County: 53 indexKanawha County: 57 indexMarion County: 55 indexMarshall County: 56 indexMonongalia County: 52 indexOhio County: 48 indexRaleigh County: 48 indexTucker County: 34 indexWood County: 54 indexAshland County: 31 indexBrown County: 47 indexColumbia County: 38 indexDane County: 49 indexDodge County: 36 indexDoor County: 35 indexEau Claire County: 38 indexFlorence County: 36 indexFond du Lac County: 37 indexForest County: 33 indexGrant County: 49 indexJefferson County: 38 indexKenosha County: 41 indexKewaunee County: 38 indexLa Crosse County: 37 indexManitowoc County: 39 indexMarathon County: 37 indexMilwaukee County: 39 indexOneida County: 36 indexOutagamie County: 47 indexOzaukee County: 41 indexRacine County: 37 indexRock County: 37 indexSt. Croix County: 38 indexSauk County: 36 indexSheboygan County: 37 indexTaylor County: 34 indexVernon County: 36 indexVilas County: 37 indexWalworth County: 39 indexWashington County: 37 indexWaukesha County: 34 indexAlbany County: 46 indexCampbell County: 44 indexCarbon County: 35 indexConverse County: 23 indexCrook County: 43 indexFremont County: 46 indexJohnson County: 8 indexLaramie County: 19 indexLincoln County: 19 indexNatrona County: 17 indexPark County: 23 indexPlatte County: 15 indexSheridan County: 24 indexSublette County: 45 indexSweetwater County: 45 indexTeton County: 42 indexUinta County: 40 index

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