FIPS Code | State | County name | 2003 Rural-urban continuum code | Description | County population 2000 |
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| 19001 | IA | Adair County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 8,243 | | 19003 | IA | Adams County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 4,482 | | 19005 | IA | Allamakee County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 14,675 | | 19007 | IA | Appanoose County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 13,721 | | 19009 | IA | Audubon County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 6,830 | | 19011 | IA | Benton County | 3 | County in metro area of fewer than 250,000 population | 25,308 | | 19013 | IA | Black Hawk County | 3 | County in metro area of fewer than 250,000 population | 128,012 | | 19015 | IA | Boone County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 26,224 | | 19017 | IA | Bremer County | 3 | County in metro area of fewer than 250,000 population | 23,325 | | 19019 | IA | Buchanan County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 21,093 | | 19021 | IA | Buena Vista County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 20,411 | | 19023 | IA | Butler County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 15,305 | | 19025 | IA | Calhoun County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 11,115 | | 19027 | IA | Carroll County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 21,421 | | 19029 | IA | Cass County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 14,684 | | 19031 | IA | Cedar County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 18,187 | | 19033 | IA | Cerro Gordo County | 5 | Nonmetro county with urban population of 20,000 or more, not adjacent to a metro area | 46,447 | | 19035 | IA | Cherokee County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 13,035 | | 19037 | IA | Chickasaw County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 13,095 | | 19039 | IA | Clarke County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 9,133 | | 19041 | IA | Clay County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 17,372 | | 19043 | IA | Clayton County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 18,678 | | 19045 | IA | Clinton County | 4 | Nonmetro county with urban population of 20,000 or more, adjacent to a metro area | 50,149 | | 19047 | IA | Crawford County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 16,942 | | 19049 | IA | Dallas County | 2 | County in metro area of 250,000 to 1 million population | 40,750 | | 19051 | IA | Davis County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 8,541 | | 19053 | IA | Decatur County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 8,689 | | 19055 | IA | Delaware County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 18,404 | | 19057 | IA | Des Moines County | 5 | Nonmetro county with urban population of 20,000 or more, not adjacent to a metro area | 42,351 | | 19059 | IA | Dickinson County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 16,424 | | 19061 | IA | Dubuque County | 3 | County in metro area of fewer than 250,000 population | 89,143 | | 19063 | IA | Emmet County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 11,027 | | 19065 | IA | Fayette County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 22,008 | | 19067 | IA | Floyd County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 16,900 | | 19069 | IA | Franklin County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 10,704 | | 19071 | IA | Fremont County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 8,010 | | 19073 | IA | Greene County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 10,366 | | 19075 | IA | Grundy County | 3 | County in metro area of fewer than 250,000 population | 12,369 | | 19077 | IA | Guthrie County | 2 | County in metro area of 250,000 to 1 million population | 11,353 | | 19079 | IA | Hamilton County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 16,438 | | 19081 | IA | Hancock County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 12,100 | | 19083 | IA | Hardin County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 18,812 | | 19085 | IA | Harrison County | 2 | County in metro area of 250,000 to 1 million population | 15,666 | | 19087 | IA | Henry County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 20,336 | | 19089 | IA | Howard County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 9,932 | | 19091 | IA | Humboldt County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 10,381 | | 19093 | IA | Ida County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 7,837 | | 19095 | IA | Iowa County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 15,671 | | 19097 | IA | Jackson County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 20,296 | | 19099 | IA | Jasper County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 37,213 | | 19101 | IA | Jefferson County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 16,181 | | 19103 | IA | Johnson County | 3 | County in metro area of fewer than 250,000 population | 111,006 | | 19105 | IA | Jones County | 3 | County in metro area of fewer than 250,000 population | 20,221 | | 19107 | IA | Keokuk County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 11,400 | | 19109 | IA | Kossuth County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 17,163 | | 19111 | IA | Lee County | 5 | Nonmetro county with urban population of 20,000 or more, not adjacent to a metro area | 38,052 | | 19113 | IA | Linn County | 3 | County in metro area of fewer than 250,000 population | 191,701 | | 19115 | IA | Louisa County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 12,183 | | 19117 | IA | Lucas County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 9,422 | | 19119 | IA | Lyon County | 8 | Nonmetro county completely rural or less than 2,500 urban population, adj. to metro area | 11,763 | | 19121 | IA | Madison County | 2 | County in metro area of 250,000 to 1 million population | 14,019 | | 19123 | IA | Mahaska County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 22,335 | | 19125 | IA | Marion County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 32,052 | | 19127 | IA | Marshall County | 4 | Nonmetro county with urban population of 20,000 or more, adjacent to a metro area | 39,311 | | 19129 | IA | Mills County | 2 | County in metro area of 250,000 to 1 million population | 14,547 | | 19131 | IA | Mitchell County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 10,874 | | 19133 | IA | Monona County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 10,020 | | 19135 | IA | Monroe County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 8,016 | | 19137 | IA | Montgomery County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 11,771 | | 19139 | IA | Muscatine County | 4 | Nonmetro county with urban population of 20,000 or more, adjacent to a metro area | 41,722 | | 19141 | IA | O'Brien County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 15,102 | | 19143 | IA | Osceola County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 7,003 | | 19145 | IA | Page County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 16,976 | | 19147 | IA | Palo Alto County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 10,147 | | 19149 | IA | Plymouth County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 24,849 | | 19151 | IA | Pocahontas County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 8,662 | | 19153 | IA | Polk County | 2 | County in metro area of 250,000 to 1 million population | 374,601 | | 19155 | IA | Pottawattamie County | 2 | County in metro area of 250,000 to 1 million population | 87,704 | | 19157 | IA | Poweshiek County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 18,815 | | 19159 | IA | Ringgold County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 5,469 | | 19161 | IA | Sac County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 11,529 | | 19163 | IA | Scott County | 2 | County in metro area of 250,000 to 1 million population | 158,668 | | 19165 | IA | Shelby County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 13,173 | | 19167 | IA | Sioux County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 31,589 | | 19169 | IA | Story County | 3 | County in metro area of fewer than 250,000 population | 79,981 | | 19171 | IA | Tama County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 18,103 | | 19173 | IA | Taylor County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 6,958 | | 19175 | IA | Union County | 6 | Nonmetro county with urban population of 2,500-19,999, adjacent to a metro area | 12,309 | | 19177 | IA | Van Buren County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 7,809 | | 19179 | IA | Wapello County | 5 | Nonmetro county with urban population of 20,000 or more, not adjacent to a metro area | 36,051 | | 19181 | IA | Warren County | 2 | County in metro area of 250,000 to 1 million population | 40,671 | | 19183 | IA | Washington County | 3 | County in metro area of fewer than 250,000 population | 20,670 | | 19185 | IA | Wayne County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 6,730 | | 19187 | IA | Webster County | 5 | Nonmetro county with urban population of 20,000 or more, not adjacent to a metro area | 40,235 | | 19189 | IA | Winnebago County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 11,723 | | 19191 | IA | Winneshiek County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 21,310 | | 19193 | IA | Woodbury County | 3 | County in metro area of fewer than 250,000 population | 103,877 | | 19195 | IA | Worth County | 9 | Nonmetro county completely rural or less than 2,500 urban population, not adj. to metro area | 7,909 | | 19197 | IA | Wright County | 7 | Nonmetro county with urban population of 2,500-19,999, not adjacent to a metro area | 14,334 |
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