Percent Change in Population, 2010-11
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The table is sorted in ascending order by FIPS code . Click a column title to sort by that column; click again to reverse the sort.
FIPS 1 County name RUC code 2 Pop. 1990 Pop. 2000 Pop. 2010 Pop. 2011 Change 2010-11 19001 Adair County 8 8,409 8,252 7,682 7,527 -2.02 19003 Adams County 9 4,866 4,479 4,029 4,004 -0.62 19005 Allamakee County 6 13,855 14,687 14,330 14,274 -0.39 19007 Appanoose County 7 13,743 13,715 12,887 12,797 -0.70 19009 Audubon County 8 7,334 6,826 6,119 6,034 -1.39 19011 Benton County 3 22,429 25,312 26,076 26,092 0.06 19013 Black Hawk County 3 123,798 127,990 131,090 131,549 0.35 19015 Boone County 6 25,186 26,206 26,306 26,255 -0.19 19017 Bremer County 3 22,813 23,361 24,276 24,281 0.02 19019 Buchanan County 6 20,844 21,092 20,958 20,923 -0.17 19021 Buena Vista County 7 19,965 20,415 20,260 20,406 0.72 19023 Butler County 8 15,731 15,307 14,867 14,939 0.48 19025 Calhoun County 9 11,508 11,114 9,670 9,626 -0.46 19027 Carroll County 7 21,423 21,433 20,816 20,861 0.22 19029 Cass County 6 15,128 14,689 13,956 13,817 -1.00 19031 Cedar County 6 17,444 18,181 18,499 18,400 -0.54 19033 Cerro Gordo County 5 46,733 46,454 44,151 43,938 -0.48 19035 Cherokee County 6 14,098 13,032 12,072 12,069 -0.02 19037 Chickasaw County 6 13,295 13,095 12,439 12,449 0.08 19039 Clarke County 6 8,287 9,131 9,286 9,356 0.75 19041 Clay County 7 17,585 17,369 16,667 16,590 -0.46 19043 Clayton County 8 19,054 18,667 18,129 18,014 -0.63 19045 Clinton County 4 51,040 50,159 49,116 49,015 -0.21 19047 Crawford County 6 16,775 16,945 17,096 17,277 1.06 19049 Dallas County 2 29,755 41,109 66,135 69,444 5.00 19051 Davis County 9 8,312 8,541 8,753 8,787 0.39 19053 Decatur County 9 8,338 8,689 8,457 8,284 -2.05 19055 Delaware County 6 18,035 18,422 17,764 17,658 -0.60 19057 Des Moines County 5 42,614 42,359 40,325 40,169 -0.39 19059 Dickinson County 7 14,909 16,429 16,667 16,899 1.39 19061 Dubuque County 3 86,403 89,133 93,653 94,648 1.06 19063 Emmet County 7 11,569 11,022 10,302 10,104 -1.92 19065 Fayette County 6 21,843 22,020 20,880 20,973 0.45 19067 Floyd County 7 17,058 16,898 16,303 16,070 -1.43 19069 Franklin County 7 11,364 10,700 10,680 10,730 0.47 19071 Fremont County 8 8,226 8,008 7,441 7,367 -0.99 19073 Greene County 6 10,045 10,372 9,336 9,285 -0.55 19075 Grundy County 3 12,029 12,370 12,453 12,459 0.05 19077 Guthrie County 2 10,935 11,348 10,954 10,901 -0.48 19079 Hamilton County 6 16,071 16,435 15,673 15,538 -0.86 19081 Hancock County 7 12,638 12,107 11,341 11,287 -0.48 19083 Hardin County 6 19,094 18,806 17,534 17,426 -0.62 19085 Harrison County 2 14,730 15,674 14,928 14,828 -0.67 19087 Henry County 7 19,226 20,353 20,145 20,284 0.69 19089 Howard County 7 9,809 9,951 9,566 9,565 -0.01 19091 Humboldt County 7 10,756 10,384 9,815 9,802 -0.12 19093 Ida County 8 8,365 7,839 7,089 7,086 -0.04 19095 Iowa County 8 14,630 15,680 16,355 16,320 -0.21 19097 Jackson County 6 19,950 20,295 19,848 19,796 -0.26 19099 Jasper County 6 34,795 37,229 36,842 36,547 -0.80 19101 Jefferson County 7 16,310 16,180 16,843 16,815 -0.17 19103 Johnson County 3 96,119 110,983 130,882 133,038 1.65 19105 Jones County 3 19,444 20,227 20,638 20,608 -0.15 19107 Keokuk County 8 11,624 11,405 10,511 10,378 -1.27 19109 Kossuth County 7 18,591 17,159 15,543 15,396 -0.95 19111 Lee County 5 38,687 38,062 35,862 35,621 -0.67 19113 Linn County 3 168,767 191,728 211,226 213,875 1.25 19115 Louisa County 8 11,592 12,188 11,387 11,369 -0.16 19117 Lucas County 6 9,070 9,412 8,898 8,847 -0.57 19119 Lyon County 8 11,952 11,763 11,581 11,670 0.77 19121 Madison County 2 12,483 14,012 15,679 15,779 0.64 19123 Mahaska County 7 21,532 22,319 22,381 22,530 0.67 19125 Marion County 6 30,001 32,048 33,309 33,335 0.08 19127 Marshall County 4 38,276 39,332 40,648 40,980 0.82 19129 Mills County 2 13,202 14,543 15,059 14,992 -0.44 19131 Mitchell County 7 10,928 10,877 10,776 10,783 0.10 19133 Monona County 6 10,034 10,020 9,243 9,239 -0.04 19135 Monroe County 7 8,114 8,012 7,970 8,056 1.08 19137 Montgomery County 6 12,076 11,775 10,740 10,640 -0.93 19139 Muscatine County 4 39,907 41,723 42,745 42,815 0.16 19141 O'Brien County 7 15,444 15,096 14,398 14,210 -1.31 19143 Osceola County 7 7,267 7,003 6,462 6,357 -1.62 19145 Page County 7 16,870 16,982 15,932 15,987 0.35 19147 Palo Alto County 7 10,669 10,143 9,421 9,419 -0.02 19149 Plymouth County 6 23,388 24,859 24,986 24,896 -0.36 19151 Pocahontas County 9 9,525 8,664 7,310 7,180 -1.78 19153 Polk County 2 327,140 374,258 430,640 437,399 1.57 19155 Pottawattamie County 2 82,628 87,825 93,158 93,518 0.39 19157 Poweshiek County 7 19,033 18,829 18,914 18,804 -0.58 19159 Ringgold County 9 5,420 5,469 5,131 5,119 -0.23 19161 Sac County 9 12,324 11,531 10,350 10,241 -1.05 19163 Scott County 2 150,973 158,705 165,224 167,095 1.13 19165 Shelby County 6 13,230 13,064 12,167 12,039 -1.05 19167 Sioux County 6 29,903 31,596 33,704 33,900 0.58 19169 Story County 3 74,252 79,988 89,542 89,663 0.14 19171 Tama County 6 17,419 18,099 17,767 17,695 -0.41 19173 Taylor County 9 7,114 6,958 6,317 6,305 -0.19 19175 Union County 6 12,750 12,312 12,534 12,545 0.09 19177 Van Buren County 9 7,676 7,800 7,570 7,510 -0.79 19179 Wapello County 5 35,696 36,067 35,625 35,421 -0.57 19181 Warren County 2 36,033 40,672 46,225 46,732 1.10 19183 Washington County 3 19,612 20,679 21,704 21,855 0.70 19185 Wayne County 9 7,067 6,732 6,403 6,309 -1.47 19187 Webster County 5 40,342 40,230 38,013 37,660 -0.93 19189 Winnebago County 7 12,122 11,717 10,866 10,789 -0.71 19191 Winneshiek County 7 20,847 21,291 21,056 21,024 -0.15 19193 Woodbury County 3 98,276 103,876 102,172 102,509 0.33 19195 Worth County 9 7,991 7,904 7,598 7,544 -0.71 19197 Wright County 7 14,269 14,337 13,229 13,068 -1.22
Source: U.S. Census Bureau , 1990 and 2000 Censuses of Population (corrected), 2010 county redistricting files , and 2011 County Total Population Estimates .
1) The FIPS codes uniquely identify each county and are part of the Federal Information Processing Standards (FIPS) developed by the National Institute of Standards and Technology (NIST), U.S. Department of Commerce. For more information, see the NIST FIPS publication page.2) The 2003 rural-urban continuum codes classify metropolitan counties (codes 1 through 3) by size of the Metropolitan Statistical Area (MSA), and nonmetropolitan counties (codes 4 through 9) by degree of urbanization and proximity to metro areas. See rural-urban continuum codes for precise definitions of each code.
