(Links below lead to Quick Facts for Wisconsin Counties: People, Business & Geography at U.S. Census Bureau.)
| Area | 7/1/2008 | 7/1/2007 | 7/1/2006 | 7/1/2005 | 7/1/2004 | 7/1/2003 | 7/1/2002 | 7/1/2001 | 7/1/2000 | Census 2000 |
| Wisconsin | 5,627,967 | 5,598,893 | 5,568,505 | 5,538,806 | 5,508,789 | 5,474,360 | 5,444,638 | 5,408,061 | 5,374,133 | 5,363,675 |
|---|---|---|---|---|---|---|---|---|---|---|
| Adams County | 20,325 | 20,514 | 20,592 | 20,662 | 20,317 | 20,294 | 20,349 | 20,206 | 20,001 | 18,643 |
| Ashland County | 16,295 | 16,271 | 16,442 | 16,450 | 16,587 | 16,685 | 16,796 | 16,812 | 16,854 | 16,866 |
| Barron County | 45,590 | 45,537 | 45,665 | 45,569 | 45,610 | 45,443 | 45,441 | 45,198 | 45,028 | 44,963 |
| Bayfield County | 14,926 | 15,060 | 14,998 | 14,992 | 15,031 | 15,060 | 15,068 | 15,050 | 15,032 | 15,013 |
| Brown County | 245,018 | 243,166 | 240,404 | 238,679 | 236,793 | 233,950 | 232,002 | 229,483 | 227,320 | 226,778 |
| Buffalo County | 13,741 | 13,827 | 13,813 | 13,871 | 13,715 | 13,755 | 13,745 | 13,845 | 13,807 | 13,804 |
| Burnett County | 16,196 | 16,285 | 16,249 | 16,316 | 16,327 | 16,185 | 16,005 | 15,856 | 15,714 | 15,674 |
| Calumet County | 44,727 | 44,232 | 44,199 | 44,044 | 43,735 | 43,337 | 42,523 | 41,454 | 40,728 | 40,631 |
| Chippewa County | 60,456 | 60,000 | 59,424 | 59,178 | 58,343 | 56,761 | 56,094 | 55,681 | 55,326 | 55,195 |
| Clark County | 33,553 | 33,430 | 33,516 | 33,583 | 33,647 | 33,614 | 33,564 | 33,612 | 33,629 | 33,557 |
| Columbia County | 55,196 | 55,146 | 54,832 | 54,568 | 54,363 | 53,649 | 53,148 | 52,983 | 52,619 | 52,468 |
| Crawford County | 16,885 | 16,948 | 16,944 | 16,884 | 16,980 | 16,871 | 16,983 | 17,022 | 17,246 | 17,243 |
| Dane County | 482,705 | 475,601 | 468,128 | 461,932 | 455,821 | 449,459 | 443,289 | 435,807 | 428,600 | 426,526 |
| Dodge County | 87,912 | 87,729 | 87,851 | 87,181 | 87,333 | 86,834 | 86,605 | 86,265 | 86,005 | 85,897 |
| Door County | 27,771 | 27,751 | 28,004 | 28,037 | 28,128 | 28,254 | 28,220 | 28,145 | 28,028 | 27,961 |
| Douglas County | 43,774 | 43,714 | 43,787 | 43,911 | 43,878 | 43,815 | 43,628 | 43,536 | 43,381 | 43,287 |
| Dunn County | 42,688 | 42,542 | 42,259 | 41,565 | 41,350 | 40,962 | 40,796 | 40,536 | 39,953 | 39,858 |
| Eau Claire County | 98,286 | 97,549 | 96,586 | 95,560 | 95,061 | 94,952 | 94,759 | 94,016 | 93,363 | 93,142 |
| Florence County | 4,652 | 4,744 | 4,840 | 4,862 | 4,933 | 4,996 | 5,103 | 5,052 | 5,088 | 5,088 |
| Fond du Lac County | 99,453 | 99,043 | 98,667 | 98,392 | 98,223 | 97,956 | 97,781 | 97,729 | 97,383 | 97,296 |
| Forest County | 9,846 | 9,792 | 9,847 | 9,890 | 9,990 | 9,903 | 9,879 | 9,900 | 10,040 | 10,024 |
| Grant County | 49,238 | 49,124 | 48,733 | 49,138 | 49,251 | 49,243 | 49,213 | 49,507 | 49,534 | 49,597 |
| Green County | 36,090 | 35,718 | 35,340 | 34,797 | 34,485 | 34,060 | 34,029 | 33,836 | 33,723 | 33,647 |
| Green Lake County | 18,566 | 18,681 | 18,776 | 18,831 | 18,946 | 19,030 | 19,138 | 19,144 | 19,076 | 19,105 |
| Iowa County | 23,604 | 23,520 | 23,520 | 23,365 | 23,163 | 23,138 | 23,002 | 22,919 | 22,801 | 22,780 |
| Iron County | 6,197 | 6,288 | 6,362 | 6,485 | 6,577 | 6,654 | 6,748 | 6,798 | 6,845 | 6,861 |
| Jackson County | 19,904 | 19,803 | 19,643 | 19,600 | 19,421 | 19,486 | 19,285 | 19,291 | 19,131 | 19,100 |
| Jefferson County | 80,792 | 80,074 | 79,326 | 78,646 | 77,971 | 77,091 | 76,680 | 76,347 | 75,938 | 74,021 |
| Juneau County | 26,633 | 26,552 | 26,510 | 26,425 | 25,213 | 25,024 | 24,933 | 24,513 | 24,358 | 24,316 |
| Kenosha County | 164,465 | 162,896 | 161,273 | 159,679 | 157,698 | 155,723 | 153,830 | 151,941 | 150,074 | 149,577 |
| Kewaunee County | 20,388 | 20,463 | 20,550 | 20,478 | 20,431 | 20,288 | 20,368 | 20,258 | 20,198 | 20,187 |
| La Crosse County | 112,627 | 111,535 | 110,233 | 109,623 | 109,135 | 108,845 | 108,356 | 107,706 | 107,280 | 107,120 |
| Lafayette County | 15,871 | 15,798 | 16,015 | 16,059 | 16,094 | 16,105 | 16,137 | 16,108 | 16,127 | 16,137 |
| Langlade County | 20,165 | 20,278 | 20,322 | 20,425 | 20,657 | 20,645 | 20,722 | 20,821 | 20,733 | 20,740 |
| Lincoln County | 29,499 | 29,619 | 29,704 | 29,881 | 29,895 | 29,784 | 29,789 | 29,645 | 29,702 | 29,641 |
| Manitowoc County | 80,641 | 80,768 | 80,849 | 81,020 | 81,219 | 81,535 | 82,051 | 82,643 | 82,925 | 82,887 |
| Marathon County | 130,962 | 129,783 | 128,803 | 127,568 | 126,737 | 126,418 | 126,313 | 126,135 | 125,909 | 125,834 |
| Marinette County | 42,288 | 42,447 | 42,583 | 42,966 | 42,767 | 43,036 | 43,205 | 43,217 | 43,437 | 43,384 |
| Marquette County | 15,060 | 14,950 | 15,014 | 15,002 | 14,856 | 14,707 | 14,665 | 14,563 | 14,611 | 15,832 |
| Menominee County | 4,571 | 4,599 | 4,582 | 4,554 | 4,571 | 4,607 | 4,628 | 4,580 | 4,582 | 4,562 |
| Milwaukee County | 953,328 | 951,331 | 951,334 | 949,251 | 950,238 | 949,209 | 946,707 | 943,749 | 939,720 | 940,164 |
| Monroe County | 43,350 | 43,014 | 42,565 | 42,144 | 41,851 | 41,422 | 41,425 | 41,168 | 41,000 | 40,899 |
| Oconto County | 37,529 | 37,427 | 37,353 | 37,227 | 37,093 | 36,692 | 36,339 | 36,092 | 35,801 | 35,634 |
| Oneida County | 36,031 | 36,163 | 36,368 | 36,637 | 36,820 | 37,076 | 36,816 | 36,896 | 36,806 | 36,776 |
| Outagamie County | 174,993 | 173,608 | 171,926 | 170,076 | 168,426 | 166,889 | 165,589 | 163,873 | 161,781 | 160,971 |
| Ozaukee County | 85,874 | 85,378 | 85,104 | 84,995 | 84,905 | 84,164 | 83,553 | 82,970 | 82,528 | 82,317 |
| Pepin County | 7,357 | 7,364 | 7,347 | 7,410 | 7,398 | 7,327 | 7,322 | 7,243 | 7,199 | 7,213 |
| Pierce County | 40,254 | 39,794 | 39,521 | 38,997 | 38,552 | 37,932 | 37,478 | 37,214 | 36,918 | 36,804 |
| Polk County | 44,270 | 44,209 | 44,218 | 43,883 | 43,487 | 42,954 | 42,539 | 42,197 | 41,446 | 41,319 |
| Portage County | 68,744 | 68,318 | 67,829 | 67,577 | 67,409 | 67,439 | 67,487 | 67,340 | 67,252 | 67,182 |
| Price County | 14,278 | 14,421 | 14,755 | 14,987 | 15,145 | 15,325 | 15,390 | 15,554 | 15,809 | 15,822 |
| Racine County | 199,510 | 199,018 | 198,083 | 196,798 | 194,701 | 192,967 | 191,362 | 189,938 | 188,974 | 188,831 |
| Richland County | 17,982 | 18,160 | 18,008 | 17,996 | 18,102 | 17,919 | 17,835 | 17,945 | 17,976 | 17,924 |
| Rock County | 160,213 | 159,398 | 158,046 | 156,394 | 155,382 | 153,989 | 153,522 | 153,156 | 152,496 | 152,307 |
| Rusk County | 14,389 | 14,431 | 14,510 | 14,689 | 14,825 | 14,853 | 15,134 | 15,176 | 15,349 | 15,347 |
| Sauk County | 59,013 | 58,399 | 57,844 | 57,402 | 56,888 | 56,248 | 55,792 | 55,404 | 55,340 | 55,225 |
| Sawyer County | 17,117 | 17,063 | 16,907 | 16,842 | 16,711 | 16,622 | 16,465 | 16,290 | 16,242 | 16,196 |
| Shawano County | 40,972 | 40,973 | 40,925 | 40,898 | 40,852 | 40,738 | 40,783 | 40,760 | 40,765 | 40,664 |
| Sheboygan County | 114,561 | 114,206 | 113,898 | 113,663 | 113,226 | 112,954 | 112,954 | 112,872 | 112,745 | 112,646 |
| St. Croix County | 82,487 | 80,992 | 79,067 | 76,599 | 73,645 | 70,823 | 68,128 | 65,650 | 63,646 | 63,155 |
| Taylor County | 19,308 | 19,291 | 19,335 | 19,473 | 19,503 | 19,422 | 19,591 | 19,627 | 19,720 | 19,680 |
| Trempealeau County | 27,790 | 27,787 | 27,689 | 27,571 | 27,285 | 27,119 | 27,064 | 27,030 | 27,078 | 27,010 |
| Vernon County | 29,090 | 28,955 | 28,825 | 28,730 | 28,472 | 28,261 | 28,211 | 28,131 | 28,065 | 28,056 |
| Vilas County | 21,919 | 22,047 | 22,102 | 22,059 | 22,028 | 21,966 | 21,746 | 21,455 | 21,145 | 21,033 |
| Walworth County | 100,749 | 100,299 | 100,002 | 98,954 | 97,458 | 96,604 | 95,130 | 93,403 | 92,420 | 93,759 |
| Washburn County | 16,712 | 16,661 | 16,621 | 16,500 | 16,466 | 16,403 | 16,379 | 16,200 | 16,086 | 16,036 |
| Washington County | 129,477 | 128,014 | 126,450 | 124,992 | 123,476 | 121,694 | 120,517 | 119,309 | 117,959 | 117,493 |
| Waukesha County | 380,629 | 378,655 | 375,833 | 374,924 | 373,137 | 371,344 | 368,541 | 364,791 | 362,054 | 360,767 |
| Waupaca County | 51,858 | 51,936 | 51,933 | 52,001 | 52,196 | 52,248 | 52,181 | 51,986 | 51,950 | 51,731 |
| Waushara County | 24,760 | 24,700 | 24,686 | 24,576 | 24,572 | 24,504 | 24,318 | 23,372 | 23,105 | 23,154 |
| Winnebago County | 162,111 | 161,308 | 160,247 | 159,448 | 158,535 | 158,222 | 158,372 | 157,762 | 157,076 | 156,763 |
| Wood County | 73,756 | 73,796 | 73,989 | 74,445 | 74,753 | 74,877 | 75,098 | 75,348 | 75,553 | 75,555 |
Source: Population Division, U.S. Census Bureau