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    Jan 1990    
 
 
    Apr 2019
Persons
Name Apr 2019 Mar 2019 Apr 2018
Adair County
4,083 4,152 4,018
Adams County
2,115 2,138 2,083
Allamakee County
7,381 7,466 7,306
Appanoose County
5,924 5,947 5,824
Audubon County
3,111 3,133 3,012
Benton County
13,431 13,463 13,288
Black Hawk County
70,719 70,498 69,486
Boone County
15,006 15,053 14,848
Bremer County
14,057 14,068 13,875
Buchanan County
11,007 11,051 11,117
Buena Vista County
11,299 11,426 11,364
Butler County
7,815 7,849 7,787
Calhoun County
4,232 4,259 4,242
Carroll County
10,677 10,782 10,597
Cass County
7,057 7,092 7,161
Cedar County
10,832 10,897 10,800
Cerro Gordo County
23,728 23,668 23,214
Cherokee County
5,891 5,958 5,850
Chickasaw County
6,409 6,439 6,265
Clarke County
4,874 4,947 4,730
Clay County
8,564 8,650 8,362
Clayton County
10,091 10,160 10,030
Clinton County
22,475 22,487 22,767
Crawford County
7,997 8,107 8,087
Dallas County
49,136 48,685 47,473
Davis County
4,261 4,292 4,166
Decatur County
4,382 4,363 4,302
Delaware County
10,383 10,469 10,267
Des Moines County
19,538 19,629 19,420
Dickinson County
9,531 9,503 9,207
Dubuque County
56,751 56,746 55,177
Emmet County
5,203 5,222 5,242
Fayette County
10,830 10,876 10,595
Floyd County
8,917 9,012 8,661
Franklin County
5,761 5,793 5,663
Fremont County
3,759 3,709 3,668
Greene County
5,418 5,479 5,341
Grundy County
6,539 6,609 6,482
Guthrie County
5,610 5,668 5,463
Hamilton County
6,932 6,991 6,904
Hancock County
5,927 5,909 5,942
Hardin County
8,165 8,256 8,139
Harrison County
7,361 7,417 7,218
Henry County
9,715 9,762 9,588
Howard County
5,268 5,368 5,026
Humboldt County
5,188 5,203 5,120
Ida County
4,100 4,153 4,057
Iowa County
10,541 10,608 10,238
Jackson County
11,062 11,083 10,828
Jasper County
19,665 19,564 19,156
Jefferson County
9,294 9,326 9,204
Johnson County
86,672 86,350 86,396
Jones County
10,500 10,590 10,430
Keokuk County
5,029 5,073 5,099
Kossuth County
8,406 8,532 8,327
Lee County
16,074 16,174 15,903
Linn County
121,537 120,716 119,928
Louisa County
6,076 6,137 6,015
Lucas County
4,592 4,628 4,384
Lyon County
6,878 6,916 6,807
Madison County
8,616 8,658 8,320
Mahaska County
11,856 11,814 11,669
Marion County
18,579 18,400 17,763
Marshall County
17,548 17,989 17,930
Mills County
7,431 7,433 7,258
Mitchell County
5,757 5,722 5,550
Monona County
4,429 4,457 4,399
Monroe County
3,941 3,991 3,832
Montgomery County
4,920 4,987 4,853
Muscatine County
21,748 21,782 21,841
O'Brien County
8,171 8,171 8,095
Osceola County
3,453 3,484 3,443
Page County
6,341 6,384 6,338
Palo Alto County
4,929 4,940 4,796
Plymouth County
14,950 14,990 14,472
Pocahontas County
4,158 4,178 4,010
Polk County
273,368 271,293 264,042
Pottawattamie County
48,934 48,960 47,810
Poweshiek County
10,921 10,795 10,760
Ringgold County
2,441 2,480 2,452
Sac County
5,209 5,242 5,168
Scott County
89,074 88,778 86,726
Shelby County
6,632 6,697 6,595
Sioux County
20,580 20,593 20,296
Story County
60,614 60,391 59,015
Tama County
9,581 9,731 9,435
Taylor County
3,162 3,179 3,228
Union County
6,270 6,339 6,363
Van Buren County
3,590 3,602 3,644
Wapello County
17,796 17,821 17,636
Warren County
28,525 28,381 27,559
Washington County
12,133 12,247 12,134
Wayne County
2,737 2,792 2,711
Webster County
19,088 19,007 19,126
Winneshiek County
12,280 12,263 11,895
Winnebago County
4,948 4,995 4,861
Woodbury County
56,695 56,586 54,500
Worth County
4,116 4,151 4,097
Wright County
6,412 6,459 6,381
   

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