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    Jan 1976    
 
 
    Sep 2020
Persons
Name Sep 2020 Aug 2020 Sep 2019
Iowa
1,542,635 1,523,618 1,706,813
Adair County
3,747 3,688 4,186
Adams County
1,925 1,901 2,169
Allamakee County
6,589 6,415 7,323
Appanoose County
5,259 5,272 5,567
Audubon County
2,726 2,702 3,038
Benton County
11,873 11,790 13,404
Black Hawk County
62,612 61,732 68,808
Boone County
13,763 13,326 15,035
Bremer County
12,596 12,409 13,904
Buchanan County
9,886 9,832 11,327
Buena Vista County
11,181 10,841 11,717
Butler County
7,113 6,958 7,880
Calhoun County
3,799 3,716 4,215
Carroll County
9,878 9,771 10,926
Cass County
6,196 6,120 6,811
Cedar County
9,794 9,616 10,801
Cerro Gordo County
21,040 21,013 23,407
Cherokee County
5,676 5,550 6,127
Chickasaw County
5,954 5,817 6,441
Clarke County
4,264 4,291 4,794
Clay County
7,722 7,570 8,415
Clayton County
8,720 8,707 10,064
Clinton County
20,571 20,420 22,384
Crawford County
7,175 7,055 8,033
Dallas County
44,542 44,341 49,801
Davis County
3,760 3,699 4,144
Decatur County
3,959 3,777 4,448
Delaware County
9,431 9,358 10,536
Des Moines County
16,797 16,910 18,755
Dickinson County
8,306 8,547 10,323
Dubuque County
50,186 49,268 55,915
Emmet County
4,738 4,637 5,250
Fayette County
9,462 8,996 10,541
Floyd County
7,477 7,511 8,418
Franklin County
5,015 4,951 5,634
Fremont County
3,307 3,275 3,662
Greene County
4,923 4,748 5,412
Grundy County
5,843 5,744 6,485
Guthrie County
4,941 4,894 5,562
Hamilton County
6,246 6,123 6,852
Hancock County
5,329 5,322 5,842
Hardin County
7,159 7,010 7,959
Harrison County
6,723 6,655 7,325
Henry County
8,978 8,685 9,760
Howard County
4,648 4,612 5,102
Humboldt County
4,549 4,448 5,103
Ida County
3,829 3,800 4,104
Iowa County
9,599 9,516 10,504
Jackson County
9,748 9,637 10,822
Jasper County
17,804 17,401 19,739
Jefferson County
9,520 9,235 10,112
Johnson County
79,305 79,516 86,799
Jones County
9,360 9,278 10,578
Keokuk County
4,657 4,639 5,112
Kossuth County
7,563 7,434 8,322
Lee County
14,664 14,508 15,855
Linn County
108,129 107,480 121,569
Louisa County
5,561 5,520 5,995
Lucas County
4,214 4,218 4,535
Lyon County
6,236 6,168 7,054
Madison County
7,561 7,515 8,469
Mahaska County
10,811 10,610 11,892
Marion County
17,065 16,481 18,541
Marshall County
15,662 15,703 17,414
Mills County
6,781 6,721 7,367
Mitchell County
6,454 6,592 7,014
Monona County
3,844 3,777 4,384
Monroe County
3,658 3,573 4,015
Montgomery County
4,428 4,400 4,908
Muscatine County
20,022 19,962 21,786
O'Brien County
7,492 7,425 8,235
Osceola County
3,146 3,121 3,470
Page County
5,718 5,785 6,270
Palo Alto County
4,193 4,166 4,781
Plymouth County
13,713 13,427 14,815
Pocahontas County
4,370 4,182 4,852
Polk County
240,258 239,313 268,338
Pottawattamie County
44,762 44,405 48,403
Poweshiek County
9,480 8,877 10,600
Ringgold County
2,176 2,159 2,455
Sac County
4,766 4,683 5,257
Scott County
78,550 78,239 88,607
Shelby County
6,001 6,004 6,651
Sioux County
19,064 18,632 21,262
Story County
56,911 53,243 60,174
Tama County
8,425 8,323 9,288
Taylor County
2,870 2,830 3,173
Union County
5,633 5,556 6,226
Van Buren County
3,283 3,229 3,283
Wapello County
15,993 15,757 17,484
Warren County
25,354 25,229 28,318
Washington County
10,894 10,875 12,001
Wayne County
2,560 2,491 2,769
Webster County
17,532 17,404 19,405
Winnebago County
4,587 4,560 5,123
Winneshiek County
10,112 8,988 12,349
Woodbury County
51,845 50,882 55,551
Worth County
3,758 3,775 4,200
Wright County
6,338 6,351 6,981
   

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