(CO-99-3) County Population Estimates for July 1, 1999, and Demographic Components of Population Change: July 1, 1998 to July 1, 1999 Two additional components of demographic change--net federal movement and a residual--are not included in this table. Source: Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC 20233 Contact: Demographic Call Center Staff, 1-866-758-1060 Internet Release Date: March 9, 2000 Net Net International Domestic 7/1/99 7/1/98 Births Deaths Migration Migration FIPS State/County Code and Area Name Estimate Estimate 1998-99 1998-99 1998-99 1998-99 19 Iowa.............................. 2,869,413 2,861,025 37,371 28,750 3,398 -3,008 19001 Adair County, IA.................. 8,066 8,103 64 133 0 34 19003 Adams County, IA.................. 4,405 4,386 46 64 0 38 19005 Allamakee County, IA.............. 14,068 14,052 177 172 16 -1 19007 Appanoose County, IA.............. 13,446 13,568 143 201 -3 -61 19009 Audubon County, IA................ 6,802 6,806 82 80 1 -4 19011 Benton County, IA................. 25,798 25,399 261 215 -2 351 19013 Black Hawk County, IA............. 119,959 120,918 1,579 1,230 83 -1,401 19015 Boone County, IA.................. 26,300 26,113 299 313 3 199 19017 Bremer County, IA................. 23,440 23,343 212 207 -5 104 19019 Buchanan County, IA............... 21,160 21,152 287 226 12 -57 19021 Buena Vista County, IA............ 19,404 19,412 227 226 41 -41 19023 Butler County, IA................. 15,499 15,631 141 196 -1 -72 19025 Calhoun County, IA................ 11,319 11,373 105 160 1 6 19027 Carroll County, IA................ 21,518 21,616 221 239 2 -75 19029 Cass County, IA................... 14,512 14,642 151 230 -1 -51 19031 Cedar County, IA.................. 18,056 17,957 204 175 2 71 19033 Cerro Gordo County, IA............ 45,669 46,073 540 524 6 -424 19035 Cherokee County, IA............... 13,060 13,190 128 188 3 -71 19037 Chickasaw County, IA.............. 13,423 13,425 142 134 1 -3 19039 Clarke County, IA................. 8,273 8,303 84 93 3 -21 19041 Clay County, IA................... 17,245 17,474 187 177 2 -243 19043 Clayton County, IA................ 18,582 18,711 189 205 -5 -105 19045 Clinton County, IA................ 49,612 49,924 636 602 11 -351 19047 Crawford County, IA............... 16,427 16,462 232 182 28 -111 19049 Dallas County, IA................. 38,210 36,865 518 315 52 1,055 19051 Davis County, IA.................. 8,517 8,462 129 90 0 20 19053 Decatur County, IA................ 8,319 8,241 105 117 0 90 19055 Delaware County, IA............... 18,482 18,541 220 173 -1 -100 19057 Des Moines County, IA............. 41,955 42,069 577 479 13 -215 19059 Dickinson County, IA.............. 16,285 16,209 154 184 4 107 19061 Dubuque County, IA................ 88,112 87,879 1,228 820 12 -157 19063 Emmet County, IA.................. 10,638 10,850 118 154 6 -186 19065 Fayette County, IA................ 21,566 21,794 254 276 0 -206 19067 Floyd County, IA.................. 16,256 16,369 197 217 8 -98 19069 Franklin County, IA............... 10,781 10,865 129 128 9 -91 19071 Fremont County, IA................ 7,706 7,771 71 126 2 -8 19073 Greene County, IA................. 10,020 10,075 127 161 -1 -18 19075 Grundy County, IA................. 12,284 12,234 135 147 -1 65 19077 Guthrie County, IA................ 11,591 11,506 127 125 0 82 19079 Hamilton County, IA............... 15,905 16,010 200 195 9 -115 19081 Hancock County, IA................ 12,037 12,044 128 139 4 6 19083 Hardin County, IA................. 18,159 18,350 184 238 1 -135 19085 Harrison County, IA............... 15,216 15,336 165 221 4 -68 19087 Henry County, IA.................. 20,139 20,038 222 191 13 64 19089 Howard County, IA................. 9,574 9,680 90 138 1 -58 19091 Humboldt County, IA............... 10,224 10,327 124 140 -2 -83 19093 Ida County, IA.................... 7,930 7,917 107 94 3 1 19095 Iowa County, IA................... 15,667 15,513 196 189 -1 148 19097 Jackson County, IA................ 20,157 20,139 266 251 2 6 19099 Jasper County, IA................. 36,659 36,541 421 358 0 62 19101 Jefferson County, IA.............. 16,762 17,043 164 167 42 -328 19103 Johnson County, IA................ 103,813 102,556 1,314 497 133 333 19105 Jones County, IA.................. 20,075 20,138 222 185 3 -99 19107 Keokuk County, IA................. 11,340 11,469 133 154 1 -109 19109 Kossuth County, IA................ 17,630 17,721 167 222 1 -29 19111 Lee County, IA.................... 38,309 38,488 477 425 14 -238 19113 Linn County, IA................... 184,891 182,779 2,684 1,377 194 662 19115 Louisa County, IA................. 11,945 11,935 169 106 34 -85 19117 Lucas County, IA.................. 9,131 9,098 104 107 7 32 19119 Lyon County, IA................... 12,030 12,036 140 131 0 -15 19121 Madison County, IA................ 14,105 13,888 166 170 -4 222 19123 Mahaska County, IA................ 21,954 21,899 256 238 11 34 19125 Marion County, IA................. 31,529 31,327 343 320 9 176 19127 Marshall County, IA............... 38,782 38,740 518 516 82 -34 19129 Mills County, IA.................. 14,705 14,481 168 141 1 193 19131 Mitchell County, IA............... 11,106 11,033 142 168 0 100 19133 Monona County, IA................. 10,089 10,068 107 136 0 52 19135 Monroe County, IA................. 8,017 8,033 95 106 2 -4 19137 Montgomery County, IA............. 11,707 11,850 140 208 -2 -75 19139 Muscatine County, IA.............. 41,195 40,991 600 360 72 -96 19141 O'Brien County, IA................ 14,621 14,887 194 182 0 -285 19143 Osceola County, IA................ 6,914 6,956 78 85 0 -32 19145 Page County, IA................... 17,139 17,271 170 240 -1 -60 19147 Palo Alto County, IA.............. 9,917 10,059 108 165 0 -85 19149 Plymouth County, IA............... 24,819 24,609 332 257 7 132 19151 Pocahontas County, IA............. 8,774 8,815 72 124 -3 18 19153 Polk County, IA................... 364,672 359,713 5,972 2,856 1,854 140 19155 Pottawattamie County, IA.......... 86,425 86,190 1,123 799 77 -134 19157 Poweshiek County, IA.............. 18,693 18,759 194 238 5 -21 19159 Ringgold County, IA............... 5,361 5,358 60 79 0 25 19161 Sac County, IA.................... 11,761 11,893 141 185 0 -88 19163 Scott County, IA.................. 159,458 158,333 2,310 1,283 160 4 19165 Shelby County, IA................. 12,781 12,934 130 180 1 -102 19167 Sioux County, IA.................. 31,355 31,425 413 255 10 -234 19169 Story County, IA.................. 75,373 74,875 875 393 51 -4 19171 Tama County, IA................... 17,788 17,766 218 242 21 30 19173 Taylor County, IA................. 7,025 7,149 69 105 1 -90 19175 Union County, IA.................. 12,611 12,522 146 168 3 109 19177 Van Buren County, IA.............. 7,873 7,862 80 99 3 31 19179 Wapello County, IA................ 35,458 35,387 424 428 6 83 19181 Warren County, IA................. 40,614 40,209 489 303 8 219 19183 Washington County, IA............. 21,147 20,938 311 229 15 118 19185 Wayne County, IA.................. 6,581 6,677 67 130 2 -35 19187 Webster County, IA................ 38,832 38,975 492 530 4 -95 19189 Winnebago County, IA.............. 11,971 11,942 140 154 0 48 19191 Winneshiek County, IA............. 20,917 20,962 197 199 -1 -34 19193 Woodbury County, IA............... 101,437 101,547 1,679 945 241 -1,086 19195 Worth County, IA.................. 7,657 7,742 68 105 0 -46 19197 Wright County, IA................. 13,892 14,039 181 220 -1 -105