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Illinois Median Age County Rank

Based on ACS 2005-2009 data*

A total of 102 results found. Show Results on Map.

RankMedian Age ▲County / Population
1.25.60Mcdonough, IL / 32,907
2.26.20Jackson, IL / 58,526
3.26.80Champaign, IL / 192,135
4.27.20Dekalb, IL / 104,279
5.29.90Coles, IL / 52,144
6.30.60Mclean, IL / 163,686
7.32.70Kendall, IL / 94,070
8.33.70Kane, IL / 494,371
9.34.30Will, IL / 664,361
10.34.70Cook, IL / 5,257,001
11.35.70Brown, IL / 6,593
12.35.90Lake, IL / 702,558
12.35.90Boone, IL / 52,400
14.36.00Grundy, IL / 46,513
14.36.00Peoria, IL / 183,474
14.36.00Kankakee, IL / 111,244
17.36.20Saint Clair, IL / 261,268
18.36.80Mchenry, IL / 312,946
19.37.20Winnebago, IL / 295,803
19.37.20Dupage, IL / 925,530
21.37.50Cass, IL / 13,575
22.37.90Logan, IL / 29,942
22.37.90Madison, IL / 266,886
24.38.10Douglas, IL / 19,436
25.38.30Johnson, IL / 13,653
26.38.40Effingham, IL / 34,329
26.38.40Bond, IL / 18,173
28.38.80Lawrence, IL / 16,550
29.39.00Sangamon, IL / 194,049
29.39.00Perry, IL / 22,542
31.39.10Woodford, IL / 37,950
31.39.10Rock Island, IL / 146,670
33.39.20Clinton, IL / 36,235
34.39.30Vermilion, IL / 80,926
34.39.30Jersey, IL / 22,412
34.39.30Monroe, IL / 32,358
34.39.30Ogle, IL / 54,841
38.39.50Tazewell, IL / 130,789
39.39.60Morgan, IL / 35,300
39.39.60Williamson, IL / 64,212
41.39.70Macon, IL / 108,772
41.39.70Pulaski, IL / 6,430
43.40.00La Salle, IL / 112,293
43.40.00Randolph, IL / 32,851
45.40.10Jefferson, IL / 40,063
45.40.10Warren, IL / 17,551
47.40.20Livingston, IL / 37,965
48.40.30Adams, IL / 66,892
48.40.30Cumberland, IL / 10,802
50.40.40Fayette, IL / 21,015
51.40.70Clark, IL / 16,778
52.40.90Richland, IL / 15,621
52.40.90Montgomery, IL / 29,782
52.40.90Washington, IL / 14,725
52.40.90Lee, IL / 34,994
52.40.90Dewitt, IL / 16,290
57.41.00Marion, IL / 39,488
57.41.00Massac, IL / 15,081
57.41.00Greene, IL / 13,765
60.41.10Whiteside, IL / 59,059
60.41.10Ford, IL / 13,968
62.41.20Macoupin, IL / 48,148
62.41.20Franklin, IL / 39,301
62.41.20Saline, IL / 25,906
65.41.30Wabash, IL / 12,199
65.41.30Knox, IL / 52,077
65.41.30Christian, IL / 34,543
68.41.40Moultrie, IL / 14,344
69.41.50Clay, IL / 13,729
70.41.80Bureau, IL / 34,795
70.41.80Fulton, IL / 36,860
70.41.80Mason, IL / 15,075
73.41.90Hamilton, IL / 8,186
73.41.90Gallatin, IL / 5,921
75.42.00Pike, IL / 16,484
76.42.10Crawford, IL / 19,545
76.42.10Henry, IL / 49,523
78.42.30Stephenson, IL / 46,821
78.42.30Union, IL / 18,078
80.42.40Jasper, IL / 9,645
80.42.40Menard, IL / 12,460
80.42.40Wayne, IL / 16,505
83.42.50Scott, IL / 5,238
84.42.60Edgar, IL / 18,750
84.42.60Stark, IL / 6,076
86.42.70Mercer, IL / 16,440
86.42.70Piatt, IL / 16,499
86.42.70Iroquois, IL / 30,017
89.42.90Calhoun, IL / 5,076
90.43.00Shelby, IL / 21,854
90.43.00Alexander, IL / 8,254
92.43.30Marshall, IL / 12,831
93.43.50White, IL / 14,772
94.43.60Schuyler, IL / 6,917
94.43.60Hancock, IL / 18,720
94.43.60Edwards, IL / 6,526
97.43.80Putnam, IL / 5,977
98.44.20Hardin, IL / 4,470
99.45.00Carroll, IL / 15,878
100.45.20Henderson, IL / 7,550
101.45.90Pope, IL / 4,071
102.46.30Jo Daviess, IL / 22,160

Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' data are not listed.

*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.


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