Counties with more registered voters in the 2016 Election than adults of voting age:

StateCountyRate
AlabamaLowndes County131%
AlabamaMacon County118%
AlabamaPerry County114%
AlabamaGreene County112%
AlabamaWilcox County112%
AlabamaHale County109%
AlabamaMarengo County109%
AlabamaDallas County108%
AlabamaConecuh County107%
AlabamaChoctaw County106%
AlabamaWashington County106%
AlabamaClarke County102%
ArizonaApache County102%
CaliforniaSan Diego County114%
CaliforniaPlumas County103%
ColoradoMineral County134%
ColoradoSan Juan County120%
ColoradoHinsdale County118%
ColoradoOuray County109%
ColoradoPark County107%
ColoradoJackson County107%
ColoradoSummit County105%
ColoradoDolores County105%
ColoradoCheyenne County104%
ColoradoMoffat County103%
ColoradoBoulder County102%
ColoradoPitkin County102%
ColoradoArchuleta County101%
ColoradoGilpin County100%
ColoradoClear Creek County100%
ColoradoPhillips County100%
ColoradoBaca County100%
FloridaSanta Rosa County104%
GeorgiaMcIntosh County154%
GeorgiaMarion County137%
GeorgiaOconee County103%
GeorgiaLee County102%
GeorgiaFayette County102%
GeorgiaBryan County101%
IowaFremont County113%
IowaJohnson County104%
IowaMahaska County104%
IowaWebster County104%
IowaAdams County104%
IowaLyon County104%
IowaMarion County104%
IowaPocahontas County104%
IowaCass County103%
IowaAllamakee County102%
IowaClay County102%
IowaWarren County102%
IowaIowa County102%
IowaWorth County102%
IowaCarroll County102%
IowaEmmet County102%
IowaHancock County101%
IowaMadison County101%
IowaPoweshiek County101%
IowaWinnebago County101%
IowaAudobon County101%
IowaJackson County101%
IowaDallas County101%
IowaGuthrie County101%
IowaDickinson County101%
IowaO’Brien County101%
Iowa Chickasaw County101%
IowaGrundy County101%
IowaScott County100%
IowaPalo Alto County100% 
IowaPlymouth County100%
IllinoisShelby County154%
Illinois Alexander County154%
IllinoisMarshall County146%
IllinoisScott County136%
IllinoisMassac County135%
IllinoisPike County133%
IllinoisDe Kalb County127%
IllinoisUnion County111%
IllinoisJersey County109%
IllinoisJefferson County106%
IllinoisClark County105%
IllinoisWabash County103%
IllinoisMercer County103%
IllinoisAdams County102%
IllinoisPulaski County102%
IllinoisGrundy County102%
IllinoisWhite County101%
Illinois Edgar County101%
Illinois De Witt County101%
IllinoisMcHenry County100%
Illinois Schuyler County100%
Illinois Carroll County100%
Kentucky*Fulton County112%
Kentucky* Breathitt County112%
Kentucky* Trimble County107%
Kentucky* Carlisle County107%
Kentucky* Powell County106%
Kentucky* McCracken County106%
Kentucky* Boone County105%
Kentucky* Floyd County105%
Kentucky* Anderson County105%
Kentucky* Mercer County105%
Kentucky* Monroe County105%
Kentucky*Trigg County104%
Kentucky*Boyd County104%
Kentucky*Greenup County104%
Kentucky*Menifee County104%
Kentucky*Leslie County103%
Kentucky*Caldwell County103%
Kentucky*Lawrence County103%
Kentucky*Hancock County103%
Kentucky*Marshall County103%
Kentucky*Oldham County103%
Kentucky*Livingston County103%
Kentucky*Magoffin County103%
Kentucky*Kenton County103%
Kentucky*Pike County102%
Kentucky*Russell County102%
Kentucky*Cumberland County102%
Kentucky*Wolfe County102%
Kentucky*Owsley County102%
Kentucky*Ballard County102%
Kentucky*Spencer County101%
Kentucky*Woodford County101%
Kentucky*Clark County101%
Kentucky*Metcalfe County101%
Kentucky*Robertson County101%
Kentucky*Green County101%
Kentucky* Hickman County101%
Kentucky* Nicholas County100%
Kentucky*Johnson County100%
Kentucky*Lee County100%
Kentucky*Bath County100%
LouisianaTensas Parish114%
LouisianaSt. Helena Parish104%
MichiganLeelanau County110%
MichiganOntanagon County109%
MichiganOtsego County109%
MichiganGogebic County109%
MichiganDickinson County109%
MichiganKalkaska County108%
MichiganRoscommon County108%
MichiganAntrim County108%
MichiganEmmet County108%
MichiganBerrien County107%
MichiganKeweenaw County106%
MichiganCharlevoix County105%
MichiganBenzie County105%
MichiganGenesee County105%
MichiganMackinac County105%
MichiganGladwin County104%
MichiganIron County103%
MichiganAlcona County103%
MichiganSchoolcraft County102%
MichiganMontmorency County102%
MichiganDelta County102%
MichiganMonroe County102%
MichiganPresque Isle County102%
MichiganAlpena County101%
MichiganMenominee County101%
MichiganCheboygan County101%
MichiganCrawford County101%
MichiganIosco County101%
MichiganGrand Traverse County101%
MichiganWayne County101%
MichiganOscoda County101%
MichiganMidland County100%
MissouriCarter County101%
MississippiTunica County137%
MississippiLeFlore County136%
MississippiJefferson County118%
MississippiScott County117%
MississippiHumphreys County115%
MississippiBolivar County110%
MississippiMadison County110%
MississippiYalobusha County108%
MississippiLeake County106%
MississippiGrenada County106%
MississippiAmite County106%
MississippiWilkinson County105%
MississippiPanola County103%
MississippiCoahoma County103%
MississippiWebster County102%
MississippiClaiborne County102%
MississippiHolmes County101%
MississippiLowndes County101%
MississippiKemper County101%
MontanaPetroleum County109%
MontanaTreasure County101%
North CarolinaOrange County105%
North CarolinaCherokee County105%
North CarolinaDare County102%
North CarolinaWatauga County101%
North CarolinaClay County101%
NebraskaLoup County111%
Nebraska Kimball County105%
Nebraska Keya Paha County103%
Nebraska Blaine County102%
Nebraska Logan County101%
Nebraska Sheridan County101%
Nebraska Thurston County101%
Nebraska Arthur County100%
Nebraska Grant County100%
New MexicoHarding County131%
New Mexico Mora County104%
New Mexico Los Alamos County101%
New Mexico Catron County101%
New Mexico Grant County101%
New YorkRichmond County158%
New York New York County154%
New York Kings County145%
New York Bronx County139%
New York Queens County123%
New York Hamilton County109%
OklahomaCimarron County102%
South DakotaHanson County169%
South Dakota Union County111%
South DakotaCampbell County109%
South DakotaPotter County105%
South DakotaHarding County105%
South DakotaLake County103%
South DakotaMcPherson County103%
South DakotaSully County102%
South DakotaFall River County102%
South Dakota Jones County101%
South Dakota Day County101%
South Dakota Douglas County100%
TexasLoving County165%
Texas Brooks County124%
TexasIrion County113%
Texas McMullen County111%
TexasKenedy County111%
TexasJim Hogg County109%
TexasCulberson County106%
TexasEdwards County102%
TexasRoberts County101%
TexasPolk County100%
TexasKent County100%
TexasCottle County100%
VirginiaSurry County102%
VirginiaFalls Church City101%
WashingtonClark County136%
West VirginiaMcDowell County114%
West Virginia Hancock County104%
West Virginia Wyoming County102%
West Virginia Mingo County101%
West VirginiaMonroe County101%
West VirginiaLogan County101%

*Denotes states only disclosing the total number of ACTIVE voters to the public. In these cases, percentages of voter registration are actually higher than listed.