Ranking of US Counties By Percentage of American Indian and Alaska Native Alone Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 4, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the US American Indian and Alaska Native Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 20.27%. Among all US counties, the following counties were among the top counties which had high percentage of their American Indian and Alaska Native Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma: Cross County, AR (100.00%); Lafayette County, AR (100.00%); and Mineral County, CO (100.00%).
The chart below shows the top 10 US counties, and the table below shows the top 500 US counties.
You can see similar information for other educational attainments.
You can also see similar information for other races and ethnicities.
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Related Topics: US Census 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of US Counties By Percentage of American Indian and Alaska Native Alone Population (Aged 25yrs+)
with an Educational Attainment of Less than High School Diploma in 2021
Items per page:
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| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Cross County, AR | 100.00 |
| 1 | Lafayette County, AR | 100.00 |
| 1 | Mineral County, CO | 100.00 |
| 1 | Dixie County, FL | 100.00 |
| 1 | Lafayette County, FL | 100.00 |
| 1 | Suwannee County, FL | 100.00 |
| 1 | Appling County, GA | 100.00 |
| 1 | Evans County, GA | 100.00 |
| 1 | Hancock County, GA | 100.00 |
| 1 | Jeff Davis County, GA | 100.00 |
| 1 | Jenkins County, GA | 100.00 |
| 1 | Marion County, GA | 100.00 |
| 1 | Telfair County, GA | 100.00 |
| 1 | Twiggs County, GA | 100.00 |
| 1 | Alexander County, IL | 100.00 |
| 1 | White County, IL | 100.00 |
| 1 | Clay County, IN | 100.00 |
| 1 | Dearborn County, IN | 100.00 |
| 1 | Knox County, IN | 100.00 |
| 1 | Audubon County, IA | 100.00 |
| 1 | Chickasaw County, IA | 100.00 |
| 1 | Franklin County, IA | 100.00 |
| 1 | Greene County, IA | 100.00 |
| 1 | Jackson County, IA | 100.00 |
| 1 | Madison County, IA | 100.00 |
| 1 | Mitchell County, KS | 100.00 |
| 1 | Morton County, KS | 100.00 |
| 1 | Osborne County, KS | 100.00 |
| 1 | Rawlins County, KS | 100.00 |
| 1 | Boyle County, KY | 100.00 |
| 1 | Carlisle County, KY | 100.00 |
| 1 | Fleming County, KY | 100.00 |
| 1 | Grant County, KY | 100.00 |
| 1 | Lawrence County, KY | 100.00 |
| 1 | Owen County, KY | 100.00 |
| 1 | Pendleton County, KY | 100.00 |
| 1 | Todd County, KY | 100.00 |
| 1 | Catahoula Parish, LA | 100.00 |
| 1 | Claiborne Parish, LA | 100.00 |
| 1 | East Carroll Parish, LA | 100.00 |
| 1 | Franklin Parish, LA | 100.00 |
| 1 | Jackson County, MN | 100.00 |
| 1 | Alcorn County, MS | 100.00 |
| 1 | Humphreys County, MS | 100.00 |
| 1 | Noxubee County, MS | 100.00 |
| 1 | Sunflower County, MS | 100.00 |
| 1 | Carroll County, MO | 100.00 |
| 1 | Maries County, MO | 100.00 |
| 1 | Morgan County, MO | 100.00 |
| 1 | Liberty County, MT | 100.00 |
| 1 | Dundy County, NE | 100.00 |
| 1 | Jefferson County, NE | 100.00 |
| 1 | Pierce County, NE | 100.00 |
| 1 | Wayne County, NE | 100.00 |
| 1 | Harrison County, OH | 100.00 |
| 1 | Wyandot County, OH | 100.00 |
| 1 | Fairfield County, SC | 100.00 |
| 1 | Hand County, SD | 100.00 |
| 1 | Decatur County, TN | 100.00 |
| 1 | Crane County, TX | 100.00 |
| 1 | Floyd County, TX | 100.00 |
| 1 | Mason County, TX | 100.00 |
| 1 | Oldham County, TX | 100.00 |
| 1 | Willacy County, TX | 100.00 |
| 1 | Dinwiddie County, VA | 100.00 |
| 1 | Fluvanna County, VA | 100.00 |
| 1 | Lee County, VA | 100.00 |
| 1 | Emporia city, VA | 100.00 |
| 1 | Williamsburg city, VA | 100.00 |
| 1 | Braxton County, WV | 100.00 |
| 1 | Doddridge County, WV | 100.00 |
| 1 | Pendleton County, WV | 100.00 |
| 2 | Jennings County, IN | 96.97 |
| 3 | Calhoun County, FL | 95.00 |
| 4 | Hart County, GA | 94.20 |
| 5 | Wayne County, IN | 93.10 |
| 6 | Putnam County, OH | 92.86 |
| 7 | Rains County, TX | 92.52 |
| 8 | Gilmer County, GA | 92.50 |
| 9 | Meade County, KS | 92.31 |
| 9 | Carroll County, NH | 92.31 |
| 9 | Hudspeth County, TX | 92.31 |
| 10 | Harrison County, WV | 91.67 |
| 11 | Madison County, ID | 91.59 |
| 12 | Kewaunee County, WI | 90.57 |
| 13 | Jefferson County, PA | 90.48 |
| 14 | Garza County, TX | 88.89 |
| 15 | Keith County, NE | 88.24 |
| 15 | Mercer County, WV | 88.24 |
| 16 | Russell County, KS | 88.00 |
| 17 | Colleton County, SC | 86.69 |
| 18 | Summit County, UT | 86.25 |
| 19 | Phillips County, KS | 85.71 |
| 20 | Beaver County, UT | 84.78 |
| 21 | Gilchrist County, FL | 84.00 |
| 22 | Abbeville County, SC | 83.78 |
| 23 | Dallas County, AL | 83.33 |
| 23 | Clinton County, IN | 83.33 |
| 23 | Swisher County, TX | 83.33 |
| 24 | Otoe County, NE | 83.05 |
| 25 | Cook County, GA | 82.81 |
| 26 | Perkins County, SD | 82.14 |
| 27 | Adams County, WA | 81.87 |
| 28 | Whitfield County, GA | 80.98 |
| 29 | Edmonson County, KY | 80.95 |
| 30 | Huerfano County, CO | 80.50 |
| 31 | Echols County, GA | 80.00 |
| 32 | Gulf County, FL | 79.31 |
| 33 | Walker County, GA | 79.07 |
| 34 | Staunton city, VA | 78.57 |
| 35 | Wapello County, IA | 78.05 |
| 36 | Dallas County, IA | 77.78 |
| 37 | Oconee County, SC | 77.03 |
| 38 | Clarendon County, SC | 76.67 |
| 39 | Allendale County, SC | 76.47 |
| 40 | Gillespie County, TX | 76.45 |
| 41 | Coffee County, TN | 76.19 |
| 42 | Forrest County, MS | 75.58 |
| 43 | Boone County, IL | 75.22 |
| 44 | San Jacinto County, TX | 75.19 |
| 45 | Montgomery County, KY | 75.00 |
| 46 | Greene County, NC | 74.68 |
| 47 | Liberty County, FL | 74.63 |
| 48 | Franklin County, PA | 74.52 |
| 49 | Marion County, AR | 74.44 |
| 50 | Bartow County, GA | 74.40 |
| 51 | Carroll County, GA | 74.38 |
| 52 | Guernsey County, OH | 74.36 |
| 53 | Kershaw County, SC | 73.91 |
| 54 | Jefferson County, MS | 73.33 |
| 55 | Chattooga County, GA | 73.21 |
| 56 | McCulloch County, TX | 73.08 |
| 57 | Cleveland County, NC | 72.97 |
| 58 | Butler County, NE | 72.73 |
| 59 | Saline County, MO | 72.41 |
| 60 | Ozark County, MO | 72.37 |
| 61 | Grenada County, MS | 72.22 |
| 62 | Choctaw County, AL | 71.43 |
| 62 | Childress County, TX | 71.43 |
| 63 | McNairy County, TN | 70.97 |
| 64 | Union County, GA | 70.92 |
| 65 | Chilton County, AL | 70.85 |
| 66 | Grant County, KS | 70.83 |
| 66 | Hancock County, OH | 70.83 |
| 67 | Alexander County, NC | 70.64 |
| 68 | Howard County, MO | 70.27 |
| 69 | Nance County, NE | 70.00 |
| 70 | Raleigh County, WV | 69.57 |
| 71 | Shelby County, TX | 69.19 |
| 72 | Chaffee County, CO | 69.01 |
| 73 | Bourbon County, KY | 68.68 |
| 74 | Upson County, GA | 68.18 |
| 74 | Butler County, IA | 68.18 |
| 75 | Nobles County, MN | 68.15 |
| 76 | Phelps County, NE | 68.12 |
| 77 | Perry County, KY | 67.93 |
| 78 | Oregon County, MO | 67.86 |
| 79 | Greene County, NY | 67.69 |
| 80 | Colquitt County, GA | 67.68 |
| 81 | Assumption Parish, LA | 67.65 |
| 82 | Grant Parish, LA | 67.57 |
| 83 | Chemung County, NY | 67.35 |
| 84 | Murray County, GA | 67.33 |
| 85 | Suffolk city, VA | 67.07 |
| 86 | Rockbridge County, VA | 67.02 |
| 87 | Taylor County, FL | 66.67 |
| 87 | Douglas County, IL | 66.67 |
| 87 | Boyd County, NE | 66.67 |
| 87 | Brown County, NE | 66.67 |
| 87 | Deuel County, SD | 66.67 |
| 88 | LaSalle Parish, LA | 65.96 |
| 89 | Conway County, AR | 65.39 |
| 90 | Gadsden County, FL | 65.35 |
| 91 | Jackson Parish, LA | 65.22 |
| 92 | Teton County, ID | 65.19 |
| 93 | Rankin County, MS | 65.16 |
| 94 | Gordon County, GA | 65.03 |
| 95 | Grant County, AR | 65.00 |
| 95 | Beaufort County, NC | 65.00 |
| 96 | Jefferson County, OH | 64.71 |
| 96 | Reeves County, TX | 64.71 |
| 97 | Dickinson County, IA | 64.29 |
| 97 | Morrison County, MN | 64.29 |
| 98 | Martin County, NC | 64.10 |
| 99 | Franklin County, AL | 63.75 |
| 100 | Ontonagon County, MI | 63.64 |
| 101 | Faribault County, MN | 63.16 |
| 102 | Tuscaloosa County, AL | 62.86 |
| 103 | Lawrence County, IL | 62.50 |
| 103 | Delaware County, IN | 62.50 |
| 103 | Keokuk County, IA | 62.50 |
| 103 | Vermilion Parish, LA | 62.50 |
| 103 | Schuyler County, NY | 62.50 |
| 104 | Otsego County, NY | 62.07 |
| 104 | Walsh County, ND | 62.07 |
| 104 | Lawrence County, PA | 62.07 |
| 105 | Fulton County, IN | 61.77 |
| 106 | Polk County, GA | 61.70 |
| 107 | Grant County, NM | 61.38 |
| 108 | Albemarle County, VA | 61.31 |
| 109 | Laurens County, SC | 61.29 |
| 110 | Shelby County, OH | 60.98 |
| 111 | Hardin County, TN | 60.87 |
| 112 | Morgan County, CO | 60.85 |
| 113 | Lamoille County, VT | 60.56 |
| 114 | Walker County, AL | 60.40 |
| 115 | Mississippi County, AR | 60.38 |
| 116 | Sierra County, NM | 60.33 |
| 117 | Whiteside County, IL | 60.29 |
| 118 | Finney County, KS | 60.16 |
| 119 | Jim Wells County, TX | 60.15 |
| 120 | Thomas County, KS | 60.00 |
| 120 | Jessamine County, KY | 60.00 |
| 120 | Burke County, NC | 60.00 |
| 120 | Griggs County, ND | 60.00 |
| 120 | Morgan County, UT | 60.00 |
| 121 | Preston County, WV | 59.79 |
| 122 | Bates County, MO | 59.65 |
| 123 | Morrow County, OR | 59.63 |
| 124 | Martin County, MN | 59.38 |
| 124 | Turner County, SD | 59.38 |
| 125 | Scott County, VA | 59.09 |
| 126 | Itawamba County, MS | 58.97 |
| 127 | Anderson County, SC | 58.96 |
| 128 | Somerset County, MD | 58.93 |
| 129 | Chickasaw County, MS | 58.82 |
| 130 | Bulloch County, GA | 58.27 |
| 131 | Cherokee County, TX | 57.91 |
| 132 | Trumbull County, OH | 57.75 |
| 133 | Bertie County, NC | 57.69 |
| 134 | Sioux County, IA | 57.66 |
| 135 | Caroline County, VA | 57.41 |
| 136 | Calloway County, KY | 57.38 |
| 137 | Franklin County, TN | 57.14 |
| 137 | Jackson County, TN | 57.14 |
| 137 | Millard County, UT | 57.14 |
| 138 | Alamosa County, CO | 57.02 |
| 139 | Lynchburg city, VA | 56.84 |
| 140 | Grant County, WI | 56.82 |
| 141 | Chesterfield County, SC | 56.72 |
| 142 | Sharp County, AR | 56.67 |
| 143 | Fayette County, TN | 56.63 |
| 144 | White County, AR | 56.56 |
| 145 | Alfalfa County, OK | 56.49 |
| 146 | Pickens County, AL | 56.25 |
| 147 | Dawson County, GA | 56.00 |
| 147 | Harrisonburg city, VA | 56.00 |
| 148 | Jackson County, IN | 55.88 |
| 149 | Calhoun County, AL | 55.85 |
| 150 | Martin County, FL | 55.60 |
| 151 | LaGrange County, IN | 55.56 |
| 151 | Atchison County, KS | 55.56 |
| 152 | Christian County, IL | 55.26 |
| 153 | Lincoln County, AR | 55.00 |
| 153 | Winn Parish, LA | 55.00 |
| 154 | Eastland County, TX | 54.72 |
| 155 | Dodge County, NE | 54.67 |
| 156 | Northumberland County, PA | 54.55 |
| 157 | Macon County, MO | 54.17 |
| 158 | Sullivan County, NY | 54.14 |
| 159 | Cherokee County, GA | 53.88 |
| 160 | Pratt County, KS | 53.85 |
| 160 | Petersburg city, VA | 53.85 |
| 161 | Park County, WY | 53.72 |
| 162 | Plaquemines Parish, LA | 53.57 |
| 162 | Noble County, OH | 53.57 |
| 162 | Roanoke city, VA | 53.57 |
| 163 | Jerome County, ID | 53.33 |
| 163 | West Feliciana Parish, LA | 53.33 |
| 163 | Grant County, SD | 53.33 |
| 164 | Franklin County, GA | 53.19 |
| 165 | Hardee County, FL | 52.94 |
| 165 | DeKalb County, MO | 52.94 |
| 166 | Maverick County, TX | 52.78 |
| 167 | Dare County, NC | 52.50 |
| 168 | Montgomery County, PA | 52.46 |
| 169 | Marengo County, AL | 52.38 |
| 170 | Wyoming County, NY | 52.31 |
| 171 | Shenandoah County, VA | 52.00 |
| 172 | Talladega County, AL | 51.79 |
| 173 | Sierra County, CA | 51.72 |
| 173 | Rhea County, TN | 51.72 |
| 174 | Independence County, AR | 51.70 |
| 175 | Lyon County, IA | 51.61 |
| 176 | Wayne County, NY | 51.43 |
| 177 | Holmes County, OH | 51.35 |
| 178 | Putnam County, TN | 51.32 |
| 179 | Yell County, AR | 51.16 |
| 180 | Ray County, MO | 51.15 |
| 181 | Hinds County, MS | 51.12 |
| 182 | Chippewa County, MN | 50.98 |
| 183 | Bedford County, TN | 50.91 |
| 184 | Coffee County, GA | 50.82 |
| 185 | Izard County, AR | 50.52 |
| 186 | Kerr County, TX | 50.30 |
| 187 | Perry County, AL | 50.00 |
| 187 | Fayette County, IL | 50.00 |
| 187 | LaSalle County, IL | 50.00 |
| 187 | Vermilion County, IL | 50.00 |
| 187 | Jefferson County, IN | 50.00 |
| 187 | Wichita County, KS | 50.00 |
| 187 | Perry County, MS | 50.00 |
| 187 | Dunklin County, MO | 50.00 |
| 187 | Grant County, NE | 50.00 |
| 187 | Merrick County, NE | 50.00 |
| 187 | Sussex County, NJ | 50.00 |
| 187 | Wells County, ND | 50.00 |
| 187 | Sherman County, OR | 50.00 |
| 187 | Hyde County, SD | 50.00 |
| 187 | Leon County, TX | 50.00 |
| 187 | McDowell County, WV | 50.00 |
| 188 | Etowah County, AL | 49.28 |
| 189 | Catawba County, NC | 48.92 |
| 190 | Livingston County, MO | 48.89 |
| 191 | Palo Pinto County, TX | 48.86 |
| 192 | Washington County, ID | 48.72 |
| 193 | Menard County, TX | 48.49 |
| 194 | Frio County, TX | 48.39 |
| 195 | Brazos County, TX | 48.34 |
| 196 | Green County, KY | 48.33 |
| 197 | Randolph County, IL | 48.15 |
| 198 | Williamson County, TN | 47.84 |
| 199 | Dallam County, TX | 47.83 |
| 200 | Audrain County, MO | 47.54 |
| 201 | Lafourche Parish, LA | 47.25 |
| 202 | East Feliciana Parish, LA | 47.14 |
| 203 | Tazewell County, IL | 47.00 |
| 204 | Avery County, NC | 46.97 |
| 205 | Walworth County, WI | 46.92 |
| 206 | Red River County, TX | 46.84 |
| 207 | Forsyth County, GA | 46.79 |
| 208 | Frederick County, VA | 46.77 |
| 209 | Williamson County, IL | 46.53 |
| 210 | Aiken County, SC | 46.41 |
| 211 | Lamb County, TX | 46.15 |
| 212 | Woodward County, OK | 46.08 |
| 213 | Lincoln County, SD | 45.98 |
| 214 | Southampton County, VA | 45.95 |
| 215 | Broadwater County, MT | 45.83 |
| 216 | Franklin County, WA | 45.78 |
| 217 | Lowndes County, GA | 45.77 |
| 218 | Winston County, AL | 45.61 |
| 219 | Mercer County, PA | 45.57 |
| 220 | Walton County, GA | 45.46 |
| 220 | Fayette County, OH | 45.46 |
| 220 | Bee County, TX | 45.46 |
| 220 | Duval County, TX | 45.46 |
| 220 | King and Queen County, VA | 45.46 |
| 220 | Buffalo County, WI | 45.46 |
| 221 | Moore County, TX | 45.13 |
| 222 | Jefferson County, TN | 44.83 |
| 223 | Union County, NJ | 44.81 |
| 224 | Polk County, AR | 44.75 |
| 225 | Hall County, GA | 44.70 |
| 226 | Tazewell County, VA | 44.68 |
| 227 | York County, NE | 44.64 |
| 228 | Essex County, NY | 44.62 |
| 229 | Emanuel County, GA | 44.44 |
| 229 | Fannin County, GA | 44.44 |
| 229 | Logan County, KY | 44.44 |
| 229 | Houston County, TN | 44.44 |
| 229 | Goochland County, VA | 44.44 |
| 230 | St. Bernard Parish, LA | 44.16 |
| 231 | Kane County, IL | 44.05 |
| 231 | St. Landry Parish, LA | 44.05 |
| 232 | Posey County, IN | 44.00 |
| 233 | Palm Beach County, FL | 43.87 |
| 234 | Estill County, KY | 43.75 |
| 235 | Forsyth County, NC | 43.62 |
| 236 | Fannin County, TX | 43.42 |
| 237 | Davidson County, NC | 43.22 |
| 238 | Monroe County, TN | 43.14 |
| 239 | Loudon County, TN | 43.08 |
| 240 | Custer County, SD | 43.07 |
| 241 | Glynn County, GA | 42.86 |
| 241 | Dodge County, MN | 42.86 |
| 241 | Scott County, MO | 42.86 |
| 241 | Lawrence County, SD | 42.86 |
| 242 | Evangeline Parish, LA | 42.76 |
| 243 | Howard County, TX | 42.50 |
| 244 | Saginaw County, MI | 42.42 |
| 245 | Terrebonne Parish, LA | 42.34 |
| 246 | Pitt County, NC | 42.32 |
| 247 | Presque Isle County, MI | 42.31 |
| 248 | Wheatland County, MT | 42.11 |
| 248 | Bastrop County, TX | 42.11 |
| 248 | Vernon County, WI | 42.11 |
| 249 | Gregory County, SD | 41.99 |
| 250 | Elmore County, ID | 41.98 |
| 251 | Pickaway County, OH | 41.86 |
| 252 | Bay County, FL | 41.85 |
| 253 | Johnson County, WY | 41.76 |
| 254 | Gibson County, TN | 41.73 |
| 255 | Randolph County, NC | 41.71 |
| 256 | Howard County, AR | 41.46 |
| 257 | Chenango County, NY | 41.38 |
| 258 | Albany County, NY | 41.32 |
| 259 | Talbot County, MD | 41.29 |
| 260 | Greene County, AR | 41.27 |
| 261 | Yancey County, NC | 41.18 |
| 261 | Crawford County, PA | 41.18 |
| 261 | Niobrara County, WY | 41.18 |
| 262 | Gray County, TX | 41.10 |
| 263 | Sheridan County, NE | 41.08 |
| 264 | Dyer County, TN | 41.03 |
| 265 | Pottawattamie County, IA | 41.01 |
| 266 | Columbia County, NY | 40.98 |
| 266 | Washington County, TN | 40.98 |
| 267 | Baker County, FL | 40.66 |
| 268 | Cerro Gordo County, IA | 40.48 |
| 268 | Delaware County, NY | 40.48 |
| 269 | Johnson County, TX | 40.32 |
| 270 | Johnson County, AR | 40.23 |
| 271 | Fremont County, CO | 40.12 |
| 272 | Marin County, CA | 40.06 |
| 273 | Montgomery County, AR | 40.00 |
| 273 | Brown County, IL | 40.00 |
| 273 | Wayne County, IL | 40.00 |
| 273 | Johnson County, TN | 40.00 |
| 273 | Halifax County, VA | 40.00 |
| 274 | DeKalb County, GA | 39.96 |
| 275 | Ventura County, CA | 39.88 |
| 276 | Lincoln County, NV | 39.80 |
| 277 | Socorro County, NM | 39.69 |
| 278 | Hettinger County, ND | 39.66 |
| 279 | Sangamon County, IL | 39.62 |
| 279 | Richland County, ND | 39.62 |
| 280 | Mecklenburg County, NC | 39.60 |
| 281 | Tift County, GA | 39.58 |
| 282 | Smith County, TX | 39.40 |
| 283 | Val Verde County, TX | 39.39 |
| 284 | Marion County, WV | 39.34 |
| 285 | Lawrence County, AR | 39.29 |
| 286 | Montgomery County, NY | 39.22 |
| 287 | Lauderdale County, TN | 39.19 |
| 288 | Union Parish, LA | 38.98 |
| 289 | Tom Green County, TX | 38.81 |
| 290 | Pickens County, SC | 38.67 |
| 291 | Van Buren County, MI | 38.65 |
| 292 | Kings County, CA | 38.52 |
| 293 | Peach County, GA | 38.46 |
| 293 | Greer County, OK | 38.46 |
| 293 | Moore County, TN | 38.46 |
| 293 | Crook County, WY | 38.46 |
| 294 | Prowers County, CO | 38.41 |
| 295 | Hardin County, TX | 38.38 |
| 296 | Beadle County, SD | 38.37 |
| 297 | Lincoln County, NE | 38.36 |
| 298 | Pasquotank County, NC | 38.35 |
| 299 | Ouachita Parish, LA | 38.30 |
| 299 | Nacogdoches County, TX | 38.30 |
| 300 | Hamilton County, FL | 38.24 |
| 301 | Clay County, MN | 38.20 |
| 302 | Uvalde County, TX | 38.19 |
| 303 | Levy County, FL | 38.16 |
| 304 | Burleson County, TX | 38.14 |
| 305 | Kearney County, NE | 38.10 |
| 306 | Pawnee County, KS | 38.00 |
| 307 | Pulaski County, KY | 37.96 |
| 307 | Greenville County, SC | 37.96 |
| 308 | Golden Valley County, ND | 37.93 |
| 309 | Jones County, IA | 37.84 |
| 310 | Cecil County, MD | 37.81 |
| 310 | Jones County, TX | 37.81 |
| 311 | Prince Edward County, VA | 37.74 |
| 312 | Jones County, SD | 37.50 |
| 312 | Newton County, TX | 37.50 |
| 313 | Baldwin County, AL | 37.42 |
| 314 | Caroline County, MD | 37.36 |
| 315 | Edgecombe County, NC | 37.31 |
| 316 | Merced County, CA | 37.29 |
| 317 | Franklin County, ID | 37.23 |
| 318 | Pike County, MO | 37.21 |
| 319 | McCreary County, KY | 37.14 |
| 320 | St. Francois County, MO | 36.99 |
| 321 | Gwinnett County, GA | 36.89 |
| 321 | Washington County, MD | 36.89 |
| 322 | Linn County, MO | 36.84 |
| 323 | Marshall County, IA | 36.75 |
| 324 | Houghton County, MI | 36.67 |
| 325 | Pottawatomie County, KS | 36.59 |
| 326 | Floyd County, GA | 36.50 |
| 327 | Fremont County, ID | 36.36 |
| 327 | Iroquois County, IL | 36.36 |
| 327 | Buchanan County, IA | 36.36 |
| 327 | Coahoma County, MS | 36.36 |
| 327 | Alleghany County, NC | 36.36 |
| 327 | Coshocton County, OH | 36.36 |
| 327 | Cumberland County, PA | 36.36 |
| 328 | Union County, NC | 36.32 |
| 329 | Union County, NM | 36.29 |
| 330 | Parker County, TX | 36.26 |
| 331 | Hancock County, MS | 36.21 |
| 332 | Avoyelles Parish, LA | 36.15 |
| 333 | Chambers County, AL | 36.11 |
| 334 | Crawford County, IL | 36.00 |
| 335 | Pike County, AL | 35.90 |
| 335 | Waushara County, WI | 35.90 |
| 336 | Miami County, OH | 35.82 |
| 337 | St. Clair County, AL | 35.75 |