Illinois

Population Density
People per square mile, 1990:	205.6
People per square mile, 2000:	223.4

Year	Population		Year	Population		Year	Population
1790	0		1880	3,077,871		1970	11,110,285
1800	0		1890	3,826,352		1980	11,427,409
1810	12,282		1900	4,821,550		1990	11,430,602
1820	55,211		1910	5,638,591		2000	12,419,293
1830	157,445		1920	6,485,280		2010	12,916,894
1840	476,183		1930	7,630,654		2020	13,236,720
1850	851,470		1940	7,897,241		2030	13,432,892
1860	1,711,951		1950	8,712,176
1870	2,539,891		1960	10,081,158

Population By County

	Census 2000 Population	Change from 1990	Percent Change
ILLINOIS	12,419,293	988,691	8.6
Adams County	68,277	2,187	3.3
Alexander County	9,590	-1,036	-9.7
Bond County	17,633	2,642	17.6
Boone County	41,786	10,980	35.6
Brown County	6,950	1,114	19.1
Bureau County	35,503	-185	-0.5
Calhoun County	5,084	-238	-4.5
Carroll County	16,674	-131	-0.8
Cass County	13,695	258	1.9
Champaign County	179,669	6,644	3.8
Christian County	35,372	954	2.8
Clark County	17,008	1,087	6.8
Clay County	14,560	100	0.7
Clinton County	35,535	1,591	4.7
Coles County	53,196	1,552	3.0
Cook County	5,376,741	271,674	5.3
Crawford County	20,452	988	5.1
Cumberland County	11,253	583	5.5
DeKalb County	88,969	11,037	14.2
De Witt County	16,798	282	1.7
Douglas County	19,922	458	2.4
DuPage County	904,161	122,495	15.7
Edgar County	19,704	109	0.6
Edwards County	6,971	-469	-6.3
Effingham County	34,264	2,560	8.1
Fayette County	21,802	909	4.4
Ford County	14,241	-34	-0.2
Franklin County	39,018	-1,301	-3.2
Fulton County	38,250	170	0.4
Gallatin County	6,445	-464	-6.7
Greene County	14,761	-556	-3.6
Grundy County	37,535	5,198	16.1
Hamilton County	8,621	122	1.4
Hancock County	20,121	-1,252	-5.9
Hardin County	4,800	-389	-7.5
Henderson County	8,213	117	1.4
Henry County	51,020	-139	-0.3
Iroquois County	31,334	547	1.8
Jackson County	59,612	-1,455	-2.4
Jasper County	10,117	-492	-4.6
Jefferson County	40,045	3,025	8.2
Jersey County	21,668	1,129	5.5
Jo Daviess County	22,289	468	2.1
Johnson County	12,878	1,531	13.5
Kane County	404,119	86,648	27.3
Kankakee County	103,833	7,578	7.9
Kendall County	54,544	15,131	38.4
Knox County	55,836	-557	-1.0
Lake County	644,356	127,938	24.8
La Salle County	111,509	4,596	4.3
Lawrence County	15,452	-520	-3.3
Lee County	36,062	1,670	4.9
Livingston County	39,678	377	1.0
Logan County	31,183	385	1.3
McDonough County	32,913	-2,331	-6.6
McHenry County	260,077	76,836	41.9
McLean County	150,433	21,253	16.5
Macon County	114,706	-2,500	-2.1
Macoupin County	49,019	1,340	2.8
Madison County	258,941	9,703	3.9
Marion County	41,691	130	0.3
Marshall County	13,180	334	2.6
Mason County	16,038	-231	-1.4
Massac County	15,161	409	2.8
Menard County	12,486	1,322	11.8
Mercer County	16,957	-333	-1.9
Monroe County	27,619	5,197	23.2
Montgomery County	30,652	-76	-0.2
Morgan County	36,616	219	0.6
Moultrie County	14,287	357	2.6
Ogle County	51,032	5,075	11.0
Peoria County	183,433	606	0.3
Perry County	23,094	1,682	7.9
Piatt County	16,365	817	5.3
Pike County	17,384	-193	-1.1
Pope County	4,413	40	0.9
Pulaski County	7,348	-175	-2.3
Putnam County	6,086	356	6.2
Randolph County	33,893	-690	-2.0
Richland County	16,149	-396	-2.4
Rock Island County	149,374	651	0.4
St. Clair County	256,082	-6,770	-2.6
Saline County	26,733	182	0.7
Sangamon County	188,951	10,565	5.9
Schuyler County	7,189	-309	-4.1
Scott County	5,537	-107	-1.9
Shelby County	22,893	632	2.8
Stark County	6,332	-202	-3.1
Stephenson County	48,979	927	1.9
Tazewell County	128,485	4,793	3.9
Union County	18,293	674	3.8
Vermilion County	83,919	-4,338	-4.9
Wabash County	12,937	-174	-1.3
Warren County	18,735	-446	-2.3
Washington County	15,148	183	1.2
Wayne County	17,151	-90	-0.5
White County	15,371	-1,151	-7.0
Whiteside County	60,653	467	0.8
Will County	502,266	144,953	40.6
Williamson County	61,296	3,563	6.2
Winnebago County	278,418	25,505	10.1
Woodford County	35,469	2,816	8.6

SOURCE: U.S. Bureau of the Census

Also Available: Illinois News

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