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

State County Rate
Alabama Lowndes County 131%
Alabama Macon County 118%
Alabama Perry County 114%
Alabama Greene County 112%
Alabama Wilcox County 112%
Alabama Hale County 109%
Alabama Marengo County 109%
Alabama Dallas County 108%
Alabama Conecuh County 107%
Alabama Choctaw County 106%
Alabama Washington County 106%
Alabama Clarke County 102%
Arizona Apache County 102%
California San Diego County 114%
California Plumas County 103%
Colorado Mineral County 134%
Colorado San Juan County 120%
Colorado Hinsdale County 118%
Colorado Ouray County 109%
Colorado Park County 107%
Colorado Jackson County 107%
Colorado Summit County 105%
Colorado Dolores County 105%
Colorado Cheyenne County 104%
Colorado Moffat County 103%
Colorado Boulder County 102%
Colorado Pitkin County 102%
Colorado Archuleta County 101%
Colorado Gilpin County 100%
Colorado Clear Creek County 100%
Colorado Phillips County 100%
Colorado Baca County 100%
Florida Santa Rosa County 104%
Georgia McIntosh County 154%
Georgia Marion County 137%
Georgia Oconee County 103%
Georgia Lee County 102%
Georgia Fayette County 102%
Georgia Bryan County 101%
Iowa Fremont County 113%
Iowa Johnson County 104%
Iowa Mahaska County 104%
Iowa Webster County 104%
Iowa Adams County 104%
Iowa Lyon County 104%
Iowa Marion County 104%
Iowa Pocahontas County 104%
Iowa Cass County 103%
Iowa Allamakee County 102%
Iowa Clay County 102%
Iowa Warren County 102%
Iowa Iowa County 102%
Iowa Worth County 102%
Iowa Carroll County 102%
Iowa Emmet County 102%
Iowa Hancock County 101%
Iowa Madison County 101%
Iowa Poweshiek County 101%
Iowa Winnebago County 101%
Iowa Audobon County 101%
Iowa Jackson County 101%
Iowa Dallas County 101%
Iowa Guthrie County 101%
Iowa Dickinson County 101%
Iowa O’Brien County 101%
Iowa  Chickasaw County 101%
Iowa Grundy County 101%
Iowa Scott County 100%
Iowa Palo Alto County 100% 
Iowa Plymouth County 100%
Illinois Shelby County 154%
Illinois  Alexander County 154%
Illinois Marshall County 146%
Illinois Scott County 136%
Illinois Massac County 135%
Illinois Pike County 133%
Illinois De Kalb County 127%
Illinois Union County 111%
Illinois Jersey County 109%
Illinois Jefferson County 106%
Illinois Clark County 105%
Illinois Wabash County 103%
Illinois Mercer County 103%
Illinois Adams County 102%
Illinois Pulaski County 102%
Illinois Grundy County 102%
Illinois White County 101%
Illinois  Edgar County 101%
Illinois  De Witt County 101%
Illinois McHenry County 100%
Illinois  Schuyler County 100%
Illinois  Carroll County 100%
Kentucky* Fulton County 112%
Kentucky*  Breathitt County 112%
Kentucky*  Trimble County 107%
Kentucky*  Carlisle County 107%
Kentucky*  Powell County 106%
Kentucky*  McCracken County 106%
Kentucky*  Boone County 105%
Kentucky*  Floyd County 105%
Kentucky*  Anderson County 105%
Kentucky*  Mercer County 105%
Kentucky*  Monroe County 105%
Kentucky* Trigg County 104%
Kentucky* Boyd County 104%
Kentucky* Greenup County 104%
Kentucky* Menifee County 104%
Kentucky* Leslie County 103%
Kentucky* Caldwell County 103%
Kentucky* Lawrence County 103%
Kentucky* Hancock County 103%
Kentucky* Marshall County 103%
Kentucky* Oldham County 103%
Kentucky* Livingston County 103%
Kentucky* Magoffin County 103%
Kentucky* Kenton County 103%
Kentucky* Pike County 102%
Kentucky* Russell County 102%
Kentucky* Cumberland County 102%
Kentucky* Wolfe County 102%
Kentucky* Owsley County 102%
Kentucky* Ballard County 102%
Kentucky* Spencer County 101%
Kentucky* Woodford County 101%
Kentucky* Clark County 101%
Kentucky* Metcalfe County 101%
Kentucky* Robertson County 101%
Kentucky* Green County 101%
Kentucky*  Hickman County 101%
Kentucky*  Nicholas County 100%
Kentucky* Johnson County 100%
Kentucky* Lee County 100%
Kentucky* Bath County 100%
Louisiana Tensas Parish 114%
Louisiana St. Helena Parish 104%
Michigan Leelanau County 110%
Michigan Ontanagon County 109%
Michigan Otsego County 109%
Michigan Gogebic County 109%
Michigan Dickinson County 109%
Michigan Kalkaska County 108%
Michigan Roscommon County 108%
Michigan Antrim County 108%
Michigan Emmet County 108%
Michigan Berrien County 107%
Michigan Keweenaw County 106%
Michigan Charlevoix County 105%
Michigan Benzie County 105%
Michigan Genesee County 105%
Michigan Mackinac County 105%
Michigan Gladwin County 104%
Michigan Iron County 103%
Michigan Alcona County 103%
Michigan Schoolcraft County 102%
Michigan Montmorency County 102%
Michigan Delta County 102%
Michigan Monroe County 102%
Michigan Presque Isle County 102%
Michigan Alpena County 101%
Michigan Menominee County 101%
Michigan Cheboygan County 101%
Michigan Crawford County 101%
Michigan Iosco County 101%
Michigan Grand Traverse County 101%
Michigan Wayne County 101%
Michigan Oscoda County 101%
Michigan Midland County 100%
Missouri Carter County 101%
Mississippi Tunica County 137%
Mississippi LeFlore County 136%
Mississippi Jefferson County 118%
Mississippi Scott County 117%
Mississippi Humphreys County 115%
Mississippi Bolivar County 110%
Mississippi Madison County 110%
Mississippi Yalobusha County 108%
Mississippi Leake County 106%
Mississippi Grenada County 106%
Mississippi Amite County 106%
Mississippi Wilkinson County 105%
Mississippi Panola County 103%
Mississippi Coahoma County 103%
Mississippi Webster County 102%
Mississippi Claiborne County 102%
Mississippi Holmes County 101%
Mississippi Lowndes County 101%
Mississippi Kemper County 101%
Montana Petroleum County 109%
Montana Treasure County 101%
North Carolina Orange County 105%
North Carolina Cherokee County 105%
North Carolina Dare County 102%
North Carolina Watauga County 101%
North Carolina Clay County 101%
Nebraska Loup County 111%
Nebraska  Kimball County 105%
Nebraska  Keya Paha County 103%
Nebraska  Blaine County 102%
Nebraska  Logan County 101%
Nebraska  Sheridan County 101%
Nebraska  Thurston County 101%
Nebraska  Arthur County 100%
Nebraska  Grant County 100%
New Mexico Harding County 131%
New Mexico  Mora County 104%
New Mexico  Los Alamos County 101%
New Mexico  Catron County 101%
New Mexico  Grant County 101%
New York Richmond County 158%
New York  New York County 154%
New York  Kings County 145%
New York  Bronx County 139%
New York  Queens County 123%
New York  Hamilton County 109%
Oklahoma Cimarron County 102%
South Dakota Hanson County 169%
South Dakota  Union County 111%
South Dakota Campbell County 109%
South Dakota Potter County 105%
South Dakota Harding County 105%
South Dakota Lake County 103%
South Dakota McPherson County 103%
South Dakota Sully County 102%
South Dakota Fall River County 102%
South Dakota  Jones County 101%
South Dakota  Day County 101%
South Dakota  Douglas County 100%
Texas Loving County 165%
Texas  Brooks County 124%
Texas Irion County 113%
Texas  McMullen County 111%
Texas Kenedy County 111%
Texas Jim Hogg County 109%
Texas Culberson County 106%
Texas Edwards County 102%
Texas Roberts County 101%
Texas Polk County 100%
Texas Kent County 100%
Texas Cottle County 100%
Virginia Surry County 102%
Virginia Falls Church City 101%
Washington Clark County 136%
West Virginia McDowell County 114%
West Virginia  Hancock County 104%
West Virginia  Wyoming County 102%
West Virginia  Mingo County 101%
West Virginia Monroe County 101%
West Virginia Logan County 101%

*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.