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Illinois Census Data

  1. Illinois Cities & Towns: Absolute & Relative Change (%) from 2000 to 2008
  2. Illinois Cities & Towns: Population Estimates From 2000 to 2008
  3. Illinois Quick Facts: People, Business & Geography (U.S. Census Bureau)

Census Data for Illinois Counties

(Links below lead to Quick Facts for Illinois 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
Illinois 12,901,563 12,825,809 12,759,673 12,704,063 12,665,718 12,611,047 12,565,228 12,510,596 12,437,888 12,419,293
Adams County 66,897 66,776 66,924 66,785 66,750 67,206 67,774 68,044 68,220 68,277
Alexander County 8,152 8,250 8,413 8,633 8,941 9,040 9,400 9,444 9,584 9,590
Bond County 18,253 18,334 18,116 18,134 18,252 18,069 17,798 17,610 17,650 17,633
Boone County 54,142 53,250 51,531 49,556 47,753 46,123 44,523 43,189 42,055 41,786
Brown County 6,573 6,539 6,613 6,686 6,782 6,850 6,834 6,935 6,963 6,950
Bureau County 34,933 34,922 34,932 34,789 34,811 34,977 35,008 35,170 35,473 35,503
Calhoun County 5,101 5,137 5,124 5,119 5,106 5,098 4,976 5,042 5,090 5,084
Carroll County 15,841 15,877 15,992 16,016 16,189 16,332 16,367 16,443 16,627 16,674
Cass County 13,574 13,595 13,512 13,615 13,598 13,647 13,530 13,666 13,676 13,695
Champaign County 193,636 193,015 190,738 188,020 186,459 185,323 183,101 181,320 179,919 179,669
Christian County 34,501 34,563 34,646 34,797 35,020 34,950 35,024 35,153 35,355 35,372
Clark County 16,834 16,835 16,807 16,836 16,809 16,822 16,906 16,873 16,993 17,008
Clay County 13,767 13,751 13,862 13,932 13,980 14,070 14,151 14,223 14,410 14,560
Clinton County 36,711 36,394 36,305 36,012 35,973 35,851 35,726 35,629 35,529 35,535
Coles County 52,172 52,283 52,321 52,086 52,420 52,365 52,029 52,319 53,084 53,196
Cook County 5,294,664 5,271,405 5,270,146 5,288,709 5,316,484 5,339,646 5,360,625 5,378,570 5,377,092 5,376,741
Crawford County 19,555 19,584 19,676 19,776 19,837 19,933 20,093 20,303 20,399 20,452
Cumberland County 10,846 10,827 10,885 10,850 10,903 10,918 11,056 11,152 11,256 11,253
De Witt County 16,354 16,391 16,487 16,407 16,427 16,497 16,550 16,725 16,788 16,798
DeKalb County 106,321 105,180 102,573 99,455 97,015 94,741 92,395 90,804 89,321 88,969
Douglas County 19,448 19,541 19,635 19,678 19,760 19,747 19,842 19,925 19,926 19,922
DuPage County 930,528 926,228 925,473 925,156 924,777 921,657 919,547 914,555 906,665 904,161
Edgar County 18,692 18,831 18,892 18,947 19,045 19,122 19,338 19,560 19,657 19,704
Edwards County 6,501 6,548 6,525 6,649 6,708 6,793 6,801 6,854 6,967 6,971
Effingham County 34,275 34,174 34,279 34,405 34,535 34,429 34,313 34,359 34,260 34,264
Fayette County 20,981 20,979 21,092 21,149 20,603 21,092 21,494 21,513 21,792 21,802
Ford County 14,050 14,114 14,007 13,984 14,057 14,041 14,092 14,146 14,209 14,241
Franklin County 39,488 39,402 39,411 39,395 39,157 38,964 38,845 38,786 39,017 39,018
Fulton County 36,719 36,811 36,947 37,134 37,381 37,521 37,493 37,849 38,240 38,250
Gallatin County 5,982 6,026 6,080 6,077 6,117 6,155 6,181 6,309 6,427 6,445
Greene County 13,644 13,724 13,878 14,110 14,170 14,344 14,591 14,595 14,746 14,761
Grundy County 47,958 46,987 45,512 43,459 40,870 39,417 38,622 38,191 37,675 37,535
Hamilton County 8,267 8,224 8,298 8,281 8,375 8,320 8,371 8,492 8,604 8,621
Hancock County 18,691 18,845 18,947 19,050 19,227 19,395 19,597 19,941 20,089 20,121
Hardin County 4,381 4,448 4,507 4,625 4,679 4,743 4,704 4,762 4,785 4,800
Henderson County 7,477 7,561 7,615 7,784 7,917 7,945 8,104 8,182 8,210 8,213
Henry County 49,569 49,604 49,548 49,860 49,940 50,273 50,169 50,562 51,049 51,020
Iroquois County 30,285 30,245 30,188 30,368 30,346 30,557 30,710 30,945 31,320 31,334
Jackson County 58,264 58,233 59,005 59,076 58,691 58,736 58,567 59,351 59,609 59,612
Jasper County 9,698 9,680 9,710 9,791 9,919 9,902 9,974 10,037 10,070 10,117
Jefferson County 40,083 40,086 40,129 40,123 40,054 40,044 40,040 40,014 40,056 40,045
Jersey County 22,622 22,400 22,331 22,185 22,130 21,940 21,899 21,709 21,655 21,668
Jo Daviess County 22,188 22,218 22,370 22,274 22,322 22,448 22,317 22,399 22,278 22,289
Johnson County 13,731 13,724 13,695 13,493 13,512 13,449 12,718 13,021 12,920 12,878
Kane County 507,579 498,142 487,279 477,214 468,212 454,661 440,584 423,969 407,520 404,119
Kankakee County 112,524 111,538 109,944 108,431 107,399 106,068 105,396 104,805 103,876 103,833
Kendall County 103,460 96,566 87,453 79,031 72,308 66,836 61,725 58,158 55,207 54,544
Knox County 51,857 51,973 52,299 52,752 53,308 53,952 54,657 55,170 55,757 55,836
Lake County 712,453 706,386 701,754 694,862 686,580 677,561 672,303 660,851 648,174 644,356
LaSalle County 112,474 112,068 111,625 111,197 111,030 110,193 111,312 111,869 111,511 111,509
Lawrence County 16,681 16,744 16,597 16,736 16,466 16,412 16,045 15,273 15,390 15,452
Lee County 35,129 35,089 34,924 34,885 35,086 35,105 35,483 35,916 36,055 36,062
Livingston County 37,681 37,838 37,924 38,255 38,476 38,580 39,113 39,632 39,650 39,678
Logan County 29,788 29,817 29,915 30,213 30,452 30,485 30,711 30,880 31,149 31,183
Macon County 108,328 108,664 109,082 109,635 110,027 110,683 111,998 113,318 114,481 114,706
Macoupin County 48,138 48,160 48,130 48,437 48,648 48,719 48,774 48,832 48,989 49,019
Madison County 268,078 267,053 265,984 264,825 263,959 262,957 261,298 260,434 259,117 258,941
Marion County 39,505 39,589 39,747 39,703 40,047 40,462 40,897 41,367 41,688 41,691
Marshall County 12,670 12,823 12,826 12,938 12,999 12,907 12,942 12,921 13,138 13,180
Mason County 15,076 15,111 15,176 15,457 15,666 15,714 15,853 15,967 16,009 16,038
Massac County 15,070 15,078 15,088 15,220 15,239 15,048 15,106 15,025 15,127 15,161
McDonough County 32,788 33,017 32,939 32,897 32,814 32,982 32,798 32,791 32,852 32,913
McHenry County 318,641 314,669 309,025 302,105 294,596 287,058 278,282 269,982 261,870 260,077
McLean County 165,298 163,692 161,630 159,349 158,369 157,227 155,595 152,598 150,880 150,433
Menard County 12,464 12,454 12,338 12,399 12,520 12,476 12,476 12,484 12,494 12,486
Mercer County 16,481 16,453 16,523 16,568 16,701 16,760 16,880 16,904 16,956 16,957
Monroe County 32,804 32,324 31,878 31,291 30,652 29,931 29,193 28,371 27,764 27,619
Montgomery County 29,773 29,813 29,970 29,961 30,146 30,177 30,441 30,454 30,625 30,652
Morgan County 35,251 35,365 35,447 35,684 35,995 35,970 36,071 36,300 36,619 36,616
Moultrie County 14,374 14,316 14,248 14,343 14,328 14,286 14,268 14,274 14,318 14,287
Ogle County 55,167 54,894 54,552 53,926 53,343 52,793 52,122 51,604 51,155 51,032
Peoria County 183,655 183,006 182,545 182,040 181,974 181,830 182,399 182,207 183,156 183,433
Perry County 22,484 22,572 22,631 22,592 22,624 22,631 22,728 23,024 23,062 23,094
Piatt County 16,505 16,457 16,497 16,490 16,344 16,285 16,160 16,324 16,373 16,365
Pike County 16,519 16,665 16,510 16,735 16,809 16,801 16,994 17,170 17,335 17,384
Pope County 4,079 4,107 4,104 4,110 4,231 4,613 4,292 4,331 4,418 4,413
Pulaski County 6,362 6,473 6,552 6,667 6,830 6,950 7,086 7,182 7,324 7,348
Putnam County 6,003 6,007 5,919 5,980 6,020 6,079 6,073 6,063 6,075 6,086
Randolph County 32,641 32,763 32,970 33,034 33,254 33,073 33,277 34,008 33,898 33,893
Richland County 15,532 15,639 15,687 15,851 15,941 16,053 16,157 16,072 16,242 16,149
Rock Island County 146,886 147,136 146,379 146,532 146,857 147,056 148,133 148,620 149,127 149,374
Saline County 25,944 26,049 25,973 25,969 26,133 26,114 26,271 26,370 26,631 26,733
Sangamon County 194,925 193,838 193,316 192,577 192,227 191,810 191,455 190,282 189,090 188,951
Schuyler County 6,916 6,993 7,010 7,068 7,026 6,975 6,999 7,031 7,189 7,189
Scott County 5,181 5,215 5,250 5,336 5,370 5,430 5,453 5,511 5,539 5,537
Shelby County 21,748 21,722 21,881 22,039 22,160 22,373 22,492 22,614 22,831 22,893
St. Clair County 262,291 261,467 260,470 258,776 258,338 257,691 257,075 255,895 256,204 256,082
Stark County 6,135 6,151 6,135 6,097 6,143 6,175 6,256 6,302 6,320 6,332
Stephenson County 46,367 46,581 46,926 47,330 47,846 48,006 48,039 48,445 48,886 48,979
Tazewell County 131,524 130,869 129,765 129,250 128,405 127,804 128,134 128,145 128,496 128,485
Union County 18,191 18,188 18,156 18,119 18,092 18,149 18,118 18,124 18,256 18,293
Vermilion County 80,680 81,167 81,641 81,743 82,170 82,386 82,923 83,452 83,799 83,919
Wabash County 12,047 12,127 12,271 12,415 12,461 12,541 12,635 12,759 12,903 12,937
Warren County 17,541 17,675 17,657 17,705 17,760 18,112 18,324 18,442 18,680 18,735
Washington County 14,728 14,737 14,831 14,820 15,003 15,111 15,086 15,236 15,163 15,148
Wayne County 16,494 16,565 16,473 16,650 16,679 16,794 16,916 17,027 17,124 17,151
White County 14,671 14,651 14,809 14,983 15,017 14,953 15,101 15,266 15,328 15,371
Whiteside County 59,153 59,026 59,171 59,217 59,461 59,564 60,101 60,560 60,631 60,653
Will County 681,097 670,663 656,190 632,173 608,767 580,714 555,723 531,273 508,029 502,266
Williamson County 64,628 64,169 63,512 63,518 63,080 62,322 62,089 61,737 61,266 61,296
Winnebago County 300,252 298,010 293,103 289,638 287,020 285,130 282,518 280,744 278,948 278,418
Woodford County 38,503 37,944 37,365 37,029 36,509 36,027 35,703 35,560 35,484 35,469

Source: Population Division, U.S. Census Bureau