Annual Estimates of the Population for Counties of Illinois

Annual Estimates of the Population for Counties of Illinois: April 1, 2000 to July 1, 2006
Geographic Area	Population Estimates							April 1, 2000
Geographic Area	July 1, 2006	July 1, 2005	July 1, 2004	July 1, 2003	July 1, 2002	July 1, 2001	July 1, 2000	Estimates Base	Census
Illinois	12,831,970	12,765,427	12,713,548	12,649,778	12,595,003	12,524,663	12,440,970	12,419,647	12,419,293
Adams County	67,221	67,053	66,854	67,323	67,770	67,974	68,205	68,277	68,277
Alexander County	8,635	8,840	9,184	9,281	9,438	9,469	9,587	9,590	9,590
Bond County	18,055	18,011	18,010	17,900	17,840	17,614	17,648	17,631	17,633
Boone County	52,617	50,419	48,399	46,575	44,798	43,373	42,084	41,784	41,786
Brown County	6,701	6,750	6,829	6,870	6,833	6,927	6,956	6,950	6,950
Bureau County	35,257	35,172	35,146	35,278	35,246	35,282	35,499	35,503	35,503
Calhoun County	5,177	5,166	5,147	5,122	5,008	5,063	5,092	5,084	5,084
Carroll County	16,035	16,090	16,212	16,336	16,367	16,443	16,623	16,674	16,674
Cass County	13,766	13,841	13,795	13,833	13,660	13,697	13,688	13,695	13,695
Champaign County	185,682	184,704	184,120	183,819	182,388	180,855	179,823	179,669	179,669
Christian County	35,063	35,186	35,234	35,097	35,192	35,207	35,362	35,372	35,372
Clark County	16,987	16,980	16,947	16,898	16,989	16,970	16,997	17,008	17,008
Clay County	14,028	14,116	14,162	14,240	14,288	14,358	14,553	14,560	14,560
Clinton County	36,633	36,138	36,077	35,979	35,776	35,687	35,560	35,531	35,535
Coles County	50,949	51,053	51,439	51,645	51,828	52,256	53,043	53,196	53,196
Cook County	5,288,655	5,303,943	5,326,269	5,348,906	5,369,642	5,381,796	5,377,890	5,376,626	5,376,741
Crawford County	19,825	19,909	19,979	20,018	20,154	20,301	20,405	20,452	20,452
Cumberland County	11,000	10,959	11,040	11,025	11,094	11,176	11,263	11,253	11,253
DeKalb County	100,139	97,770	95,358	93,616	92,006	90,544	89,299	88,969	88,969
De Witt County	16,768	16,658	16,592	16,604	16,645	16,745	16,793	16,798	16,798
Douglas County	19,791	19,818	19,915	19,887	19,944	19,954	19,924	19,922	19,922
DuPage County	932,670	931,219	929,439	925,554	922,544	916,221	907,128	904,349	904,161
Edgar County	19,183	19,193	19,240	19,307	19,404	19,559	19,660	19,704	19,704
Edwards County	6,617	6,718	6,765	6,839	6,832	6,883	6,966	6,971	6,971
Effingham County	34,429	34,505	34,605	34,486	34,394	34,360	34,269	34,264	34,264
Fayette County	21,774	21,698	21,619	21,543	21,558	21,566	21,802	21,802	21,802
Ford County	14,211	14,163	14,210	14,131	14,155	14,207	14,221	14,241	14,241
Franklin County	39,862	39,714	39,494	39,188	39,036	38,862	39,040	39,029	39,018
Fulton County	37,378	37,472	37,642	37,660	37,583	37,934	38,239	38,250	38,250
Gallatin County	6,159	6,151	6,176	6,206	6,206	6,340	6,435	6,445	6,445
Greene County	14,255	14,456	14,527	14,656	14,691	14,631	14,752	14,761	14,761
Grundy County	45,828	43,736	41,130	39,566	38,730	38,297	37,684	37,535	37,535
Hamilton County	8,335	8,319	8,392	8,347	8,415	8,507	8,601	8,621	8,621
Hancock County	19,091	19,173	19,348	19,494	19,671	19,970	20,090	20,120	20,121
Hardin County	4,585	4,670	4,706	4,737	4,730	4,783	4,792	4,800	4,800
Henderson County	7,819	7,949	8,064	8,034	8,156	8,223	8,219	8,213	8,213
Henry County	50,339	50,508	50,518	50,683	50,456	50,728	51,055	51,018	51,020
Iroquois County	30,598	30,692	30,575	30,695	30,802	30,995	31,325	31,334	31,334
Jackson County	57,778	58,041	58,144	58,132	58,147	58,944	59,528	59,611	59,612
Jasper County	9,880	9,954	10,034	10,002	10,069	10,062	10,071	10,117	10,117
Jefferson County	40,523	40,414	40,300	40,189	40,255	40,170	40,073	40,045	40,045
Jersey County	22,628	22,423	22,319	22,083	21,978	21,732	21,672	21,668	21,668
Jo Daviess County	22,594	22,508	22,494	22,560	22,437	22,449	22,288	22,289	22,289
Johnson County	13,360	13,170	13,002	12,986	12,830	13,128	12,925	12,880	12,878
Kane County	493,735	483,208	473,533	458,770	443,115	425,331	407,783	404,122	404,119
Kankakee County	109,090	107,824	106,988	106,122	105,264	104,638	103,895	103,833	103,833
Kendall County	88,158	79,597	72,776	67,062	61,801	58,106	55,197	54,520	54,544
Knox County	52,906	53,321	53,760	54,345	54,895	55,306	55,762	55,838	55,836
Lake County	713,076	704,086	693,425	682,705	675,791	662,826	648,866	644,586	644,356
LaSalle County	113,065	112,371	112,047	111,940	111,720	112,088	111,533	111,549	111,509
Lawrence County	15,887	15,965	15,946	16,035	16,068	15,295	15,408	15,452	15,452
Lee County	35,701	35,637	35,666	35,550	35,605	35,994	36,060	36,062	36,062
Livingston County	38,658	38,951	39,005	39,105	39,278	39,669	39,654	39,676	39,678
Logan County	30,302	30,531	30,694	30,718	30,783	30,956	31,164	31,192	31,183
McDonough County	31,823	32,011	32,298	32,613	32,856	32,863	32,871	32,918	32,913
McHenry County	312,373	304,701	296,625	288,634	279,233	270,283	261,746	260,093	260,077
McLean County	161,202	158,977	157,782	156,655	155,231	152,426	150,879	150,435	150,433
Macon County	109,309	109,835	110,286	110,938	112,316	113,483	114,495	114,706	114,706
Macoupin County	48,841	49,016	49,051	49,010	48,998	48,979	49,011	49,019	49,019
Madison County	265,303	263,975	263,256	263,097	260,938	260,270	259,122	258,951	258,941
Marion County	40,088	40,068	40,372	40,780	41,054	41,461	41,708	41,691	41,691
Marshall County	13,003	13,122	13,152	13,037	13,006	12,970	13,143	13,150	13,180
Mason County	15,503	15,733	15,886	15,893	15,980	16,010	16,016	16,037	16,038
Massac County	15,135	15,225	15,263	15,125	15,164	15,043	15,125	15,161	15,161
Menard County	12,588	12,587	12,692	12,648	12,588	12,581	12,518	12,486	12,486
Mercer County	16,786	16,840	16,968	16,908	17,002	16,951	16,964	16,957	16,957
Monroe County	31,876	31,289	30,706	29,915	29,180	28,387	27,772	27,619	27,619
Montgomery County	30,367	30,304	30,422	30,386	30,567	30,525	30,646	30,644	30,652
Morgan County	35,666	35,734	35,955	35,956	36,088	36,364	36,613	36,619	36,616
Moultrie County	14,383	14,426	14,411	14,371	14,358	14,358	14,340	14,287	14,287
Ogle County	54,826	54,057	53,515	52,934	52,202	51,746	51,179	51,032	51,032
Peoria County	182,495	182,056	181,827	181,835	182,516	182,261	183,224	183,439	183,433
Perry County	22,865	22,789	22,678	22,700	22,786	23,050	23,066	23,094	23,094
Piatt County	16,688	16,602	16,482	16,410	16,247	16,338	16,374	16,369	16,365
Pike County	16,840	17,035	17,094	16,968	17,069	17,225	17,345	17,379	17,384
Pope County	4,184	4,194	4,283	4,320	4,341	4,348	4,424	4,413	4,413
Pulaski County	6,726	6,815	6,927	7,042	7,178	7,212	7,322	7,348	7,348
Putnam County	6,005	6,063	6,088	6,113	6,106	6,077	6,090	6,086	6,086
Randolph County	33,028	33,116	33,243	33,203	33,277	33,973	33,916	33,893	33,893
Richland County	15,724	15,809	15,853	15,918	16,058	15,998	16,118	16,149	16,149
Rock Island County	147,545	147,454	147,521	147,617	148,411	148,774	149,132	149,388	149,374
St. Clair County	260,919	259,388	258,739	258,104	257,177	255,985	256,188	256,068	256,082
Saline County	26,062	26,054	26,172	26,113	26,231	26,323	26,648	26,733	26,733
Sangamon County	193,524	192,689	192,252	191,934	191,546	190,323	189,068	188,954	188,951
Schuyler County	6,984	7,056	7,039	6,987	6,997	7,044	7,187	7,189	7,189
Scott County	5,377	5,439	5,428	5,485	5,498	5,527	5,546	5,534	5,537
Shelby County	22,172	22,270	22,361	22,478	22,565	22,661	22,833	22,893	22,893
Stark County	6,233	6,159	6,185	6,192	6,252	6,316	6,318	6,332	6,332
Stephenson County	47,388	47,719	48,057	48,171	48,183	48,536	48,915	48,979	48,979
Tazewell County	130,559	129,603	128,960	128,189	128,356	128,238	128,496	128,485	128,485
Union County	18,261	18,219	18,166	18,222	18,166	18,140	18,257	18,293	18,293
Vermilion County	81,941	82,178	82,545	82,740	83,207	83,561	83,830	83,924	83,919
Wabash County	12,457	12,542	12,590	12,680	12,704	12,801	12,900	12,937	12,937
Warren County	17,480	17,592	17,697	18,210	18,380	18,497	18,689	18,735	18,735
Washington County	14,927	14,946	15,120	15,147	15,150	15,235	15,173	15,148	15,148
Wayne County	16,602	16,766	16,808	16,916	17,030	17,064	17,128	17,151	17,151
White County	15,078	15,217	15,227	15,097	15,221	15,351	15,343	15,371	15,371
Whiteside County	59,880	59,745	59,891	59,883	60,317	60,626	60,659	60,651	60,653
Will County	668,217	642,625	617,846	585,526	559,616	533,486	508,391	502,267	502,266
Williamson County	63,740	63,411	63,059	62,417	62,124	61,799	61,257	61,310	61,296
Winnebago County	295,635	291,639	288,549	286,193	283,226	281,038	279,024	278,420	278,418
Woodford County	37,904	37,424	36,930	36,386	36,002	35,705	35,510	35,469	35,469

Source: Population Division, U.S. Census Bureau

Illinois Counties Population Estimates