Daftar county dan daerah setingkat county di Amerika Serikat
Tabel

| 19155 | Pottawattamie County | Iowa | 92,728 | Omaha-Council Bluffs, NE-IA Metropolitan Statistical Area | Omaha-Council Bluffs-Fremont, NE-IA Combined Statistical Area |
| 19157 | Poweshiek County | Iowa | 18,601 |  |  |
| 19159 | Ringgold County | Iowa | 5,072 |  |  |
| 19161 | Sac County | Iowa | 10,071 |  |  |
| 19163 | Scott County | Iowa | 170,385 | Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area | Davenport-Moline, IA-IL Combined Statistical Area |
| 19165 | Shelby County | Iowa | 11,961 |  |  |
| 19167 | Sioux County | Iowa | 34,547 |  |  |
| 19169 | Story County | Iowa | 92,406 | Ames, IA Metropolitan Statistical Area | Des Moines-Ames-West Des Moines, IA Combined Statistical Area |
| 19171 | Tama County | Iowa | 17,576 |  |  |
| 19173 | Taylor County | Iowa | 6,161 |  |  |
| 19175 | Union County | Iowa | 12,583 |  |  |
| 19177 | Van Buren County | Iowa | 7,436 |  |  |
| 19179 | Wapello County | Iowa | 35,391 | Ottumwa, IA Micropolitan Statistical Area |  |
| 19181 | Warren County | Iowa | 47,336 | Des Moines-West Des Moines, IA Metropolitan Statistical Area | Des Moines-Ames-West Des Moines, IA Combined Statistical Area |
| 19183 | Washington County | Iowa | 22,015 | Iowa City, IA Metropolitan Statistical Area | Cedar Rapids-Iowa City, IA Combined Statistical Area |
| 19185 | Wayne County | Iowa | 6,402 |  |  |
| 19187 | Webster County | Iowa | 37,044 | Fort Dodge, IA Micropolitan Statistical Area |  |
| 19189 | Winnebago County | Iowa | 10,554 |  |  |
| 19191 | Winneshiek County | Iowa | 20,994 |  |  |
| 19193 | Woodbury County | Iowa | 102,130 | Sioux City, IA-NE-SD Metropolitan Statistical Area | Sioux City-Vermillion, IA-SD-NE Combined Statistical Area |
| 19195 | Worth County | Iowa | 7,541 | Mason City, IA Micropolitan Statistical Area |  |
| 19197 | Wright County | Iowa | 12,972 |  |  |
| 20001 | Allen County | Kansas | 13,124 |  |  |
| 20003 | Anderson County | Kansas | 7,897 |  |  |
| 20005 | Atchison County | Kansas | 16,749 | Atchison, KS Micropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20007 | Barber County | Kansas | 4,947 |  |  |
| 20009 | Barton County | Kansas | 27,509 | Great Bend, KS Micropolitan Statistical Area |  |
| 20011 | Bourbon County | Kansas | 14,852 |  |  |
| 20013 | Brown County | Kansas | 9,997 |  |  |
| 20015 | Butler County | Kansas | 65,803 | Wichita, KS Metropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20017 | Chase County | Kansas | 2,700 |  |  |
| 20019 | Chautauqua County | Kansas | 3,552 |  |  |
| 20021 | Cherokee County | Kansas | 20,978 |  |  |
| 20023 | Cheyenne County | Kansas | 2,694 |  |  |
| 20025 | Clark County | Kansas | 2,193 |  |  |
| 20027 | Clay County | Kansas | 8,406 |  |  |
| 20029 | Cloud County | Kansas | 9,292 |  |  |
| 20031 | Coffey County | Kansas | 8,412 |  |  |
| 20033 | Comanche County | Kansas | 1,955 |  |  |
| 20035 | Cowley County | Kansas | 36,204 | Arkansas City-Winfield, KS Micropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20037 | Crawford County | Kansas | 39,278 | Pittsburg, KS Micropolitan Statistical Area |  |
| 20039 | Decatur County | Kansas | 2,930 |  |  |
| 20041 | Dickinson County | Kansas | 19,609 |  |  |
| 20043 | Doniphan County | Kansas | 7,851 | St. Joseph, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20045 | Douglas County | Kansas | 114,322 | Lawrence, KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20047 | Edwards County | Kansas | 2,945 |  |  |
| 20049 | Elk County | Kansas | 2,655 |  |  |
| 20051 | Ellis County | Kansas | 29,061 | Hays, KS Micropolitan Statistical Area |  |
| 20053 | Ellsworth County | Kansas | 6,398 |  |  |
| 20055 | Finney County | Kansas | 37,098 | Garden City, KS Micropolitan Statistical Area |  |
| 20057 | Ford County | Kansas | 34,819 | Dodge City, KS Micropolitan Statistical Area |  |
| 20059 | Franklin County | Kansas | 25,740 | Ottawa, KS Micropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20061 | Geary County | Kansas | 37,384 | Junction City, KS Micropolitan Statistical Area | Manhattan-Junction City, KS Combined Statistical Area |
| 20063 | Gove County | Kansas | 2,769 |  |  |
| 20065 | Graham County | Kansas | 2,593 |  |  |
| 20067 | Grant County | Kansas | 7,950 |  |  |
| 20069 | Gray County | Kansas | 6,009 |  |  |
| 20071 | Greeley County | Kansas | 1,290 |  |  |
| 20073 | Greenwood County | Kansas | 6,424 |  |  |
| 20075 | Hamilton County | Kansas | 2,609 |  |  |
| 20077 | Harper County | Kansas | 5,860 |  |  |
| 20079 | Harvey County | Kansas | 34,741 | Wichita, KS Metropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20081 | Haskell County | Kansas | 4,141 |  |  |
| 20083 | Hodgeman County | Kansas | 1,950 |  |  |
| 20085 | Jackson County | Kansas | 13,366 | Topeka, KS Metropolitan Statistical Area |  |
| 20087 | Jefferson County | Kansas | 18,813 | Topeka, KS Metropolitan Statistical Area |  |
| 20089 | Jewell County | Kansas | 3,046 |  |  |
| 20091 | Johnson County | Kansas | 566,933 | Kansas City, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20093 | Kearny County | Kansas | 3,923 | Garden City, KS Micropolitan Statistical Area |  |
| 20095 | Kingman County | Kansas | 7,844 | Wichita, KS Metropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20097 | Kiowa County | Kansas | 2,523 |  |  |
| 20099 | Labette County | Kansas | 20,916 | Parsons, KS Micropolitan Statistical Area |  |
| 20101 | Lane County | Kansas | 1,720 |  |  |
| 20103 | Leavenworth County | Kansas | 78,185 | Kansas City, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20105 | Lincoln County | Kansas | 3,147 |  |  |
| 20107 | Linn County | Kansas | 9,516 | Kansas City, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20109 | Logan County | Kansas | 2,798 |  |  |
| 20111 | Lyon County | Kansas | 33,510 | Emporia, KS Micropolitan Statistical Area |  |
| 20113 | McPherson County | Kansas | 29,569 | McPherson, KS Micropolitan Statistical Area |  |
| 20115 | Marion County | Kansas | 12,219 |  |  |
| 20117 | Marshall County | Kansas | 10,002 |  |  |
| 20119 | Meade County | Kansas | 4,343 |  |  |
| 20121 | Miami County | Kansas | 32,835 | Kansas City, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 20123 | Mitchell County | Kansas | 6,378 |  |  |
| 20125 | Montgomery County | Kansas | 34,292 | Coffeyville, KS Micropolitan Statistical Area |  |
| 20127 | Morris County | Kansas | 5,741 |  |  |
| 20129 | Morton County | Kansas | 3,143 |  |  |
| 20131 | Nemaha County | Kansas | 10,161 |  |  |
| 20133 | Neosho County | Kansas | 16,430 |  |  |
| 20135 | Ness County | Kansas | 3,073 |  |  |
| 20137 | Norton County | Kansas | 5,622 |  |  |
| 20139 | Osage County | Kansas | 16,142 | Topeka, KS Metropolitan Statistical Area |  |
| 20141 | Osborne County | Kansas | 3,818 |  |  |
| 20143 | Ottawa County | Kansas | 6,042 | Salina, KS Micropolitan Statistical Area |  |
| 20145 | Pawnee County | Kansas | 6,971 |  |  |
| 20147 | Phillips County | Kansas | 5,540 |  |  |
| 20149 | Pottawatomie County | Kansas | 22,691 | Manhattan, KS Metropolitan Statistical Area | Manhattan-Junction City, KS Combined Statistical Area |
| 20151 | Pratt County | Kansas | 9,878 |  |  |
| 20153 | Rawlins County | Kansas | 2,589 |  |  |
| 20155 | Reno County | Kansas | 64,190 | Hutchinson, KS Micropolitan Statistical Area |  |
| 20157 | Republic County | Kansas | 4,820 |  |  |
| 20159 | Rice County | Kansas | 10,011 |  |  |
| 20161 | Riley County | Kansas | 75,394 | Manhattan, KS Metropolitan Statistical Area | Manhattan-Junction City, KS Combined Statistical Area |
| 20163 | Rooks County | Kansas | 5,190 |  |  |
| 20165 | Rush County | Kansas | 3,186 |  |  |
| 20167 | Russell County | Kansas | 6,933 |  |  |
| 20169 | Saline County | Kansas | 55,740 | Salina, KS Micropolitan Statistical Area |  |
| 20171 | Scott County | Kansas | 5,035 |  |  |
| 20173 | Sedgwick County | Kansas | 505,415 | Wichita, KS Metropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20175 | Seward County | Kansas | 23,390 | Liberal, KS Micropolitan Statistical Area |  |
| 20177 | Shawnee County | Kansas | 178,831 | Topeka, KS Metropolitan Statistical Area |  |
| 20179 | Sheridan County | Kansas | 2,553 |  |  |
| 20181 | Sherman County | Kansas | 6,115 |  |  |
| 20183 | Smith County | Kansas | 3,706 |  |  |
| 20185 | Stafford County | Kansas | 4,359 |  |  |
| 20187 | Stanton County | Kansas | 2,194 |  |  |
| 20189 | Stevens County | Kansas | 5,816 |  |  |
| 20191 | Sumner County | Kansas | 23,591 | Wichita, KS Metropolitan Statistical Area | Wichita-Arkansas City-Winfield, KS Combined Statistical Area |
| 20193 | Thomas County | Kansas | 7,948 |  |  |
| 20195 | Trego County | Kansas | 2,980 |  |  |
| 20197 | Wabaunsee County | Kansas | 7,051 | Topeka, KS Metropolitan Statistical Area |  |
| 20199 | Wallace County | Kansas | 1,569 |  |  |
| 20201 | Washington County | Kansas | 5,629 |  |  |
| 20203 | Wichita County | Kansas | 2,192 |  |  |
| 20205 | Wilson County | Kansas | 9,105 |  |  |
| 20207 | Woodson County | Kansas | 3,221 |  |  |
| 20209 | Wyandotte County | Kansas | 160,384 | Kansas City, MO-KS Metropolitan Statistical Area | Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area |
| 21001 | Adair County | Kentucky | 18,732 |  |  |
| 21003 | Allen County | Kentucky | 20,311 | Bowling Green, KY Metropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21005 | Anderson County | Kentucky | 21,811 | Frankfort, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21007 | Ballard County | Kentucky | 8,332 | Paducah, KY-IL Micropolitan Statistical Area | Paducah-Mayfield, KY-IL Combined Statistical Area |
| 21009 | Barren County | Kentucky | 43,027 | Glasgow, KY Micropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21011 | Bath County | Kentucky | 11,961 | Mount Sterling, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21013 | Bell County | Kentucky | 27,885 | Middlesborough, KY Micropolitan Statistical Area |  |
| 21015 | Boone County | Kentucky | 124,442 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21017 | Bourbon County | Kentucky | 19,998 | Lexington-Fayette, KY Metropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21019 | Boyd County | Kentucky | 48,886 | Huntington-Ashland, WV-KY-OH Metropolitan Statistical Area | Charleston-Huntington-Ashland, WV-OH-KY Combined Statistical Area |
| 21021 | Boyle County | Kentucky | 29,013 | Danville, KY Micropolitan Statistical Area |  |
| 21023 | Bracken County | Kentucky | 8,416 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21025 | Breathitt County | Kentucky | 13,545 |  |  |
| 21027 | Breckinridge County | Kentucky | 20,040 |  |  |
| 21029 | Bullitt County | Kentucky | 76,854 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21031 | Butler County | Kentucky | 12,793 | Bowling Green, KY Metropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21033 | Caldwell County | Kentucky | 12,823 |  |  |
| 21035 | Calloway County | Kentucky | 37,657 | Murray, KY Micropolitan Statistical Area |  |
| 21037 | Campbell County | Kentucky | 90,988 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21039 | Carlisle County | Kentucky | 5,001 |  |  |
| 21041 | Carroll County | Kentucky | 10,953 |  |  |
| 21043 | Carter County | Kentucky | 27,202 |  |  |
| 21045 | Casey County | Kentucky | 16,067 |  |  |
| 21047 | Christian County | Kentucky | 74,167 | Clarksville, TN-KY Metropolitan Statistical Area |  |
| 21049 | Clark County | Kentucky | 35,614 | Lexington-Fayette, KY Metropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21051 | Clay County | Kentucky | 21,364 |  |  |
| 21053 | Clinton County | Kentucky | 10,146 |  |  |
| 21055 | Crittenden County | Kentucky | 9,255 |  |  |
| 21057 | Cumberland County | Kentucky | 6,789 |  |  |
| 21059 | Daviess County | Kentucky | 98,218 | Owensboro, KY Metropolitan Statistical Area |  |
| 21061 | Edmonson County | Kentucky | 12,062 | Bowling Green, KY Metropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21063 | Elliott County | Kentucky | 7,637 |  |  |
| 21065 | Estill County | Kentucky | 14,488 |  |  |
| 21067 | Fayette County | Kentucky | 308,428 | Lexington-Fayette, KY Metropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21069 | Fleming County | Kentucky | 14,508 |  |  |
| 21071 | Floyd County | Kentucky | 38,728 |  |  |
| 21073 | Franklin County | Kentucky | 49,648 | Frankfort, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21075 | Fulton County | Kentucky | 6,385 | Union City, TN-KY Micropolitan Statistical Area | Martin-Union City, TN-KY Combined Statistical Area |
| 21077 | Gallatin County | Kentucky | 8,474 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21079 | Garrard County | Kentucky | 16,915 |  |  |
| 21081 | Grant County | Kentucky | 24,753 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21083 | Graves County | Kentucky | 37,451 | Mayfield, KY Micropolitan Statistical Area | Paducah-Mayfield, KY-IL Combined Statistical Area |
| 21085 | Grayson County | Kentucky | 25,997 |  |  |
| 21087 | Green County | Kentucky | 11,180 |  |  |
| 21089 | Greenup County | Kentucky | 36,519 | Huntington-Ashland, WV-KY-OH Metropolitan Statistical Area | Charleston-Huntington-Ashland, WV-OH-KY Combined Statistical Area |
| 21091 | Hancock County | Kentucky | 8,687 | Owensboro, KY Metropolitan Statistical Area |  |
| 21093 | Hardin County | Kentucky | 108,191 | Elizabethtown-Fort Knox, KY Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21095 | Harlan County | Kentucky | 28,499 |  |  |
| 21097 | Harrison County | Kentucky | 18,518 |  |  |
| 21099 | Hart County | Kentucky | 18,573 |  |  |
| 21101 | Henderson County | Kentucky | 46,347 | Evansville, IN-KY Metropolitan Statistical Area |  |
| 21103 | Henry County | Kentucky | 15,445 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21105 | Hickman County | Kentucky | 4,745 |  |  |
| 21107 | Hopkins County | Kentucky | 46,634 | Madisonville, KY Micropolitan Statistical Area |  |
| 21109 | Jackson County | Kentucky | 13,427 |  |  |
| 21111 | Jefferson County | Kentucky | 756,832 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21113 | Jessamine County | Kentucky | 50,173 | Lexington-Fayette, KY Metropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21115 | Johnson County | Kentucky | 23,449 |  |  |
| 21117 | Kenton County | Kentucky | 163,145 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21119 | Knott County | Kentucky | 15,976 |  |  |
| 21121 | Knox County | Kentucky | 31,790 | London, KY Micropolitan Statistical Area |  |
| 21123 | LaRue County | Kentucky | 14,064 | Elizabethtown-Fort Knox, KY Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21125 | Laurel County | Kentucky | 59,563 | London, KY Micropolitan Statistical Area |  |
| 21127 | Lawrence County | Kentucky | 15,856 |  |  |
| 21129 | Lee County | Kentucky | 7,260 |  |  |
| 21131 | Leslie County | Kentucky | 11,019 |  |  |
| 21133 | Letcher County | Kentucky | 23,619 |  |  |
| 21135 | Lewis County | Kentucky | 13,806 |  |  |
| 21137 | Lincoln County | Kentucky | 24,370 | Danville, KY Micropolitan Statistical Area |  |
| 21139 | Livingston County | Kentucky | 9,359 | Paducah, KY-IL Micropolitan Statistical Area | Paducah-Mayfield, KY-IL Combined Statistical Area |
| 21141 | Logan County | Kentucky | 26,876 |  |  |
| 21143 | Lyon County | Kentucky | 8,451 |  |  |
| 21145 | McCracken County | Kentucky | 65,373 | Paducah, KY-IL Micropolitan Statistical Area | Paducah-Mayfield, KY-IL Combined Statistical Area |
| 21147 | McCreary County | Kentucky | 17,989 |  |  |
| 21149 | McLean County | Kentucky | 9,496 | Owensboro, KY Metropolitan Statistical Area |  |
| 21151 | Madison County | Kentucky | 85,590 | Richmond-Berea, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21153 | Magoffin County | Kentucky | 12,950 |  |  |
| 21155 | Marion County | Kentucky | 20,045 |  |  |
| 21157 | Marshall County | Kentucky | 31,107 |  |  |
| 21159 | Martin County | Kentucky | 12,647 |  |  |
| 21161 | Mason County | Kentucky | 17,278 | Maysville, KY Micropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21163 | Meade County | Kentucky | 29,210 | Elizabethtown-Fort Knox, KY Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21165 | Menifee County | Kentucky | 6,288 | Mount Sterling, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21167 | Mercer County | Kentucky | 21,349 |  |  |
| 21169 | Metcalfe County | Kentucky | 9,983 | Glasgow, KY Micropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21171 | Monroe County | Kentucky | 10,681 |  |  |
| 21173 | Montgomery County | Kentucky | 27,251 | Mount Sterling, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21175 | Morgan County | Kentucky | 13,380 |  |  |
| 21177 | Muhlenberg County | Kentucky | 31,179 |  |  |
| 21179 | Nelson County | Kentucky | 44,540 | Bardstown, KY Micropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21181 | Nicholas County | Kentucky | 7,039 |  |  |
| 21183 | Ohio County | Kentucky | 23,988 |  |  |
| 21185 | Oldham County | Kentucky | 62,364 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21187 | Owen County | Kentucky | 10,662 |  |  |
| 21189 | Owsley County | Kentucky | 4,654 |  |  |
| 21191 | Pendleton County | Kentucky | 14,570 | Cincinnati, OH-KY-IN Metropolitan Statistical Area | Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area |
| 21193 | Perry County | Kentucky | 28,010 |  |  |
| 21195 | Pike County | Kentucky | 63,380 |  |  |
| 21197 | Powell County | Kentucky | 12,494 |  |  |
| 21199 | Pulaski County | Kentucky | 63,907 | Somerset, KY Micropolitan Statistical Area |  |
| 21201 | Robertson County | Kentucky | 2,235 |  |  |
| 21203 | Rockcastle County | Kentucky | 16,693 | Richmond-Berea, KY Micropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21205 | Rowan County | Kentucky | 23,527 |  |  |
| 21207 | Russell County | Kentucky | 17,752 |  |  |
| 21209 | Scott County | Kentucky | 49,947 | Lexington-Fayette, KY Metropolitan Statistical Area | Lexington-Fayette–Richmond–Frankfort, KY Combined Statistical Area |
| 21211 | Shelby County | Kentucky | 44,216 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21213 | Simpson County | Kentucky | 17,793 |  |  |
| 21215 | Spencer County | Kentucky | 17,637 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21217 | Taylor County | Kentucky | 24,649 | Campbellsville, KY Micropolitan Statistical Area |  |
| 21219 | Todd County | Kentucky | 12,503 |  |  |
| 21221 | Trigg County | Kentucky | 14,293 | Clarksville, TN-KY Metropolitan Statistical Area |  |
| 21223 | Trimble County | Kentucky | 8,816 | Louisville/Jefferson County, KY-IN Metropolitan Statistical Area | Louisville/Jefferson County–Elizabethtown–Madison, KY-IN Combined Statistical Area |
| 21225 | Union County | Kentucky | 15,029 |  |  |
| 21227 | Warren County | Kentucky | 118,370 | Bowling Green, KY Metropolitan Statistical Area | Bowling Green-Glasgow, KY Combined Statistical Area |
| 21229 | Washington County | Kentucky | 11,875 |  |  |
| 21231 | Wayne County | Kentucky | 20,678 |  |  |
| 21233 | Webster County | Kentucky | 13,452 |  |  |
| 21235 | Whitley County | Kentucky | 35,766 | London, KY Micropolitan Statistical Area |  |
| 21237 | Wolfe County | Kentucky | 7,248 |  |  |