US Census Data

Oldest by median age in Illinois

Illinois counties and cities ranked by median age.

This page ranks the counties and cities of Illinois by median age — which have the highest median age, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Hardin County leads at 55.0 yrs.

Among cities & places, Hartland leads at 90.1 yrs.

Counties

Top 100.
#NameMedian age
1Hardin County55.0 yrs
2Jo Daviess County50.9 yrs
3Pope County50.8 yrs
4Henderson County49.8 yrs
5Schuyler County48.8 yrs
6Calhoun County48.5 yrs
7Gallatin County47.3 yrs
8Putnam County47.2 yrs
9Edgar County46.4 yrs
10Hancock County46.3 yrs
11Marshall County45.9 yrs
12Alexander County45.8 yrs
13Mason County45.5 yrs
14Shelby County45.5 yrs
15Stephenson County45.2 yrs
16Massac County45.0 yrs
17Carroll County44.9 yrs
18Edwards County44.6 yrs
19Stark County44.6 yrs
20Mercer County44.5 yrs
21Iroquois County44.4 yrs
22White County44.4 yrs
23Macoupin County44.3 yrs
24Scott County44.3 yrs
25Union County44.3 yrs
26Jasper County44.2 yrs
27Washington County44.2 yrs
28Bureau County44.1 yrs
29De Witt County44.0 yrs
30Fulton County43.7 yrs
31Hamilton County43.5 yrs
32Franklin County43.4 yrs
33Henry County43.4 yrs
34Whiteside County43.4 yrs
35Jersey County43.2 yrs
36Saline County43.2 yrs
37Greene County43.1 yrs
38Wayne County43.1 yrs
39Lee County43.0 yrs
40Randolph County43.0 yrs
41Wabash County43.0 yrs
42Pike County42.9 yrs
43Menard County42.8 yrs
44Christian County42.7 yrs
45Johnson County42.7 yrs
46Pulaski County42.7 yrs
47Montgomery County42.6 yrs
48Ford County42.5 yrs
49Monroe County42.5 yrs
50Piatt County42.5 yrs
51Richland County42.5 yrs
52Crawford County42.4 yrs
53Knox County42.4 yrs
54Cumberland County42.3 yrs
55Perry County42.2 yrs
56LaSalle County42.1 yrs
57Clark County42.0 yrs
58Ogle County42.0 yrs
59Livingston County41.9 yrs
60Fayette County41.7 yrs
61Tazewell County41.7 yrs
62Clay County41.5 yrs
63Morgan County41.5 yrs
64Clinton County41.4 yrs
65Williamson County41.4 yrs
66Marion County41.3 yrs
67Vermilion County41.2 yrs
68Adams County41.1 yrs
69Jefferson County41.1 yrs
70Brown County40.9 yrs
71Macon County40.9 yrs
72Sangamon County40.8 yrs
73Lawrence County40.6 yrs
74Logan County40.5 yrs
75Woodford County40.5 yrs
76Bond County40.4 yrs
77McHenry County40.4 yrs
78Moultrie County40.4 yrs
79Rock Island County40.3 yrs
80Madison County40.2 yrs
81DuPage County40.0 yrs
82Winnebago County39.7 yrs
83Boone County39.5 yrs
84Effingham County39.5 yrs
85St. Clair County39.5 yrs
86Kankakee County39.0 yrs
87Douglas County38.9 yrs
88Lake County38.9 yrs
89Will County38.9 yrs
90Warren County38.7 yrs
91Grundy County38.6 yrs
92Kane County38.6 yrs
93Coles County38.2 yrs
94Cass County38.1 yrs
95Peoria County38.1 yrs
96Cook County37.8 yrs
97Kendall County36.0 yrs
98McDonough County35.1 yrs
99McLean County34.2 yrs
100Jackson County32.9 yrs

Cities & places

Top 100.
#NameMedian age
1Hartland90.1 yrs
2Oxville83.3 yrs
3Macedonia80.9 yrs
4Chemung75.0 yrs
5Nekoma71.4 yrs
6Joslin71.2 yrs
7Annapolis70.4 yrs
8Bentley69.3 yrs
9Camden68.5 yrs
10Alden68.1 yrs
11Florence68.0 yrs
12Otterville67.5 yrs
13Deer Grove66.8 yrs
14Literberry66.0 yrs
15Langleyville65.6 yrs
16Ellisville65.5 yrs
17Ohlman65.1 yrs
18Riggston64.6 yrs
19Millersburg64.1 yrs
20Osco63.6 yrs
21The Galena Territory63.6 yrs
22Rockport63.2 yrs
23Gladstone62.8 yrs
24New Bedford62.5 yrs
25Rockwood62.5 yrs
26Gilson61.6 yrs
27Wilton Center61.5 yrs
28East Brooklyn61.3 yrs
29West Union61.2 yrs
30Bishop Hill61.1 yrs
31Glasgow61.0 yrs
32Scottville61.0 yrs
33Lynn Center60.9 yrs
34Lake Carroll60.6 yrs
35Palos Park60.6 yrs
36Golden Gate60.3 yrs
37Oak Run60.2 yrs
38Sciota60.0 yrs
39Fowler59.9 yrs
40Sauget59.9 yrs
41Ridott59.7 yrs
42Eddyville59.6 yrs
43Elizabethtown59.5 yrs
44Kenney59.5 yrs
45Bath59.4 yrs
46Galt59.4 yrs
47Taylor Springs59.4 yrs
48West Liberty59.3 yrs
49Sawyerville59.1 yrs
50Dover59.0 yrs
51Lake Petersburg59.0 yrs
52Apple Canyon Lake58.5 yrs
53Rutland58.5 yrs
54Golconda58.4 yrs
55Burr Ridge58.1 yrs
56Galena58.1 yrs
57Lynnville58.0 yrs
58Prairietown58.0 yrs
59Bull Valley57.8 yrs
60Solon Mills57.8 yrs
61Hanna City57.6 yrs
62Huey57.6 yrs
63Hamburg57.4 yrs
64Mulkeytown57.4 yrs
65Olmsted57.4 yrs
66Berlin57.3 yrs
67Iola57.3 yrs
68Detroit57.2 yrs
69Harrison57.2 yrs
70Sims57.1 yrs
71New Burnside57.0 yrs
72East Gillespie56.9 yrs
73Goofy Ridge56.9 yrs
74Yale56.8 yrs
75Mount Clare56.7 yrs
76Pearl56.7 yrs
77Baileyville56.6 yrs
78Westfield56.6 yrs
79Willow Lake56.6 yrs
80Newman56.5 yrs
81Olive Branch56.4 yrs
82Argyle56.3 yrs
83North City56.2 yrs
84Muddy56.0 yrs
85Lake Ka-Ho55.9 yrs
86Ferris55.6 yrs
87Buckley55.5 yrs
88Holcomb55.4 yrs
89Pulaski55.2 yrs
90Redmon55.2 yrs
91Hardin55.0 yrs
92Williamson55.0 yrs
93Indianola54.9 yrs
94Hurst54.8 yrs
95Preemption54.8 yrs
96Campbell's Island54.7 yrs
97Sidell54.7 yrs
98Perry54.6 yrs
99Cherry54.5 yrs
100Dunfermline54.4 yrs

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