Annual Population by Location

Illinois

		Thousands of Persons
	Name	2025	Preceding Period	Year Ago from Period
	Adams County	64.267	64.216	64.216
	Alexander County	4.570	4.611	4.611
	Boone County	53.568	53.526	53.526
	Bond County	16.959	16.600	16.600
	Brown County	6.401	6.438	6.438
	Bureau County	32.510	32.519	32.519
	Calhoun County	4.300	4.310	4.310
	Carroll County	15.419	15.468	15.468
	Cass County	12.463	12.530	12.530
	Champaign County	209.972	209.178	209.178
	Christian County	33.443	33.442	33.442
	Clark County	15.114	15.141	15.141
	Clinton County	37.128	37.088	37.088
	Coles County	46.607	46.573	46.573
	Cook County	5,194.625	5,188.791	5,188.791
	Cumberland County	10.208	10.278	10.278
	Crawford County	18.648	18.621	18.621
	Clay County	12.793	12.845	12.845
	DeKalb County	101.835	100.621	100.621
	De Witt County	15.118	15.244	15.244
	Douglas County	19.880	19.848	19.848
	DuPage County	934.298	932.651	932.651
	Edgar County	16.323	16.382	16.382
	Effingham County	34.519	34.541	34.541
	Edwards County	5.898	5.987	5.987
	Fayette County	20.790	20.954	20.954
	Ford County	13.216	13.326	13.326
	Franklin County	36.916	36.954	36.954
	Fulton County	32.901	32.807	32.807
	Gallatin County	4.616	4.683	4.683
	Greene County	11.313	11.393	11.393
	Grundy County	54.052	53.721	53.721
	Hancock County	16.803	16.936	16.936
	Hamilton County	7.859	7.861	7.861
	Henderson County	5.984	6.031	6.031
	Henry County	48.095	48.193	48.193
	Hardin County	3.588	3.601	3.601
	Iroquois County	26.150	26.222	26.222
	Jackson County	52.501	52.682	52.682
	Jefferson County	36.147	36.112	36.112
	Johnson County	13.363	13.347	13.347
	Jo Daviess County	21.594	21.656	21.656
	Jersey County	21.160	21.155	21.155
	Jasper County	9.032	9.049	9.049
	Kane County	525.757	523.430	523.430
	Kankakee County	105.525	105.814	105.814
	Kendall County	145.470	143.125	143.125
	Knox County	47.767	47.964	47.964
	Lake County	719.339	718.490	718.490
	La Salle County	107.773	107.875	107.875
	Lee County	32.914	32.851	32.851
	Livingston County	35.057	35.184	35.184
	Logan County	27.182	27.219	27.219
	Lawrence County	13.790	13.767	13.767
	Macon County	99.300	99.949	99.949
	Marshall County	11.473	11.571	11.571
	Mason County	12.411	12.489	12.489
	McDonough County	25.916	26.115	26.115
	McHenry County	317.751	315.730	315.730
	McLean County	171.419	171.512	171.512
	Madison County	263.110	263.317	263.317
	Menard County	11.863	11.924	11.924
	Mercer County	15.229	15.292	15.292
	Montgomery County	28.076	27.837	27.837
	Morgan County	32.515	32.639	32.639
	Macoupin County	43.748	43.917	43.917
	Moultrie County	14.371	14.442	14.442
	Marion County	36.382	36.501	36.501
	Massac County	13.502	13.616	13.616
	Monroe County	34.840	35.105	35.105
	Ogle County	51.399	51.274	51.274
	Peoria County	178.553	178.541	178.541
	Piatt County	16.791	16.642	16.642
	Pike County	14.231	14.286	14.286
	Pope County	3.672	3.717	3.717
	Perry County	20.160	20.376	20.376
	Pulaski County	4.820	4.883	4.883
	Putnam County	5.619	5.617	5.617
	Randolph County	29.921	29.870	29.870
	Richland County	15.219	15.368	15.368
	Rock Island County	141.869	141.591	141.591
	Sangamon County	194.170	194.036	194.036
	Saline County	22.772	22.830	22.830
	Schuyler County	6.657	6.723	6.723
	Shelby County	20.576	20.554	20.554
	Scott County	4.866	4.889	4.889
	Stark County	5.319	5.269	5.269
	Stephenson County	43.220	43.422	43.422
	St. Clair County	250.708	251.375	251.375
	Tazewell County	130.049	129.982	129.982
	Union County	16.656	16.832	16.832
	Vermilion County	71.259	71.456	71.456
	Wabash County	10.907	11.026	11.026
	Warren County	16.222	16.116	16.116
	Whiteside County	54.121	54.423	54.423
	White County	13.250	13.449	13.449
	Will County	712.253	708.980	708.980
	Winnebago County	283.674	282.965	282.965
	Williamson County	67.225	67.074	67.074
	Woodford County	38.111	38.198	38.198
	Washington County	13.564	13.579	13.579
	Wayne County	15.882	15.883	15.883