US Census Data

Youngest by median age in Iowa

Iowa counties and cities ranked by median age.

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

Among counties, Story County leads at 27.0 yrs.

Among cities & places, Truesdale leads at 4.8 yrs.

Counties

#NameMedian age
1Story County27.0 yrs
2Johnson County30.8 yrs
3Sioux County34.0 yrs
4Black Hawk County35.7 yrs
5Buena Vista County35.7 yrs
6Dallas County35.8 yrs
7Davis County36.2 yrs
8Decatur County36.2 yrs
9Polk County36.2 yrs
10Woodbury County36.2 yrs
11Crawford County37.9 yrs
12Lyon County38.1 yrs
13Clarke County38.4 yrs
14Linn County38.5 yrs
15Bremer County38.6 yrs
16Marshall County38.7 yrs
17Warren County38.7 yrs
18Dubuque County38.8 yrs
19Scott County39.0 yrs
20Mahaska County39.1 yrs
21Muscatine County39.1 yrs
22Howard County39.3 yrs
23Marion County39.7 yrs
24O'Brien County39.8 yrs
25Webster County39.8 yrs
26Wright County39.8 yrs
27Buchanan County39.9 yrs
28Wapello County39.9 yrs
29Pottawattamie County40.1 yrs
30Washington County40.3 yrs
31Henry County40.5 yrs
32Union County40.6 yrs
33Poweshiek County40.8 yrs
34Madison County41.0 yrs
35Plymouth County41.1 yrs
36Jasper County41.4 yrs
37Grundy County41.5 yrs
38Palo Alto County41.5 yrs
39Winnebago County41.7 yrs
40Carroll County41.8 yrs
41Clay County41.8 yrs
42Humboldt County41.8 yrs
43Louisa County41.8 yrs
44Tama County41.8 yrs
45Franklin County41.9 yrs
46Harrison County41.9 yrs
47Wayne County42.0 yrs
48Monroe County42.1 yrs
49Boone County42.2 yrs
50Des Moines County42.2 yrs
51Hamilton County42.2 yrs
52Iowa County42.2 yrs
53Mitchell County42.2 yrs
54Winneshiek County42.2 yrs
55Ida County42.3 yrs
56Clinton County42.5 yrs
57Adair County42.6 yrs
58Mills County42.6 yrs
59Calhoun County42.7 yrs
60Keokuk County42.8 yrs
61Jones County43.0 yrs
62Allamakee County43.1 yrs
63Benton County43.3 yrs
64Emmet County43.3 yrs
65Lucas County43.3 yrs
66Chickasaw County43.5 yrs
67Jefferson County43.5 yrs
68Osceola County43.5 yrs
69Taylor County43.6 yrs
70Butler County43.7 yrs
71Fayette County43.7 yrs
72Lee County43.7 yrs
73Cedar County43.8 yrs
74Montgomery County43.8 yrs
75Cerro Gordo County43.9 yrs
76Pocahontas County43.9 yrs
77Cass County44.0 yrs
78Delaware County44.0 yrs
79Floyd County44.2 yrs
80Jackson County44.2 yrs
81Worth County44.3 yrs
82Cherokee County44.5 yrs
83Hancock County44.6 yrs
84Ringgold County44.6 yrs
85Monona County44.7 yrs
86Greene County44.8 yrs
87Van Buren County44.8 yrs
88Kossuth County45.0 yrs
89Page County45.0 yrs
90Shelby County45.1 yrs
91Hardin County45.2 yrs
92Sac County45.3 yrs
93Appanoose County45.5 yrs
94Clayton County46.4 yrs
95Fremont County46.4 yrs
96Guthrie County46.5 yrs
97Adams County46.6 yrs
98Audubon County47.4 yrs
99Dickinson County48.1 yrs

Cities & places

Top 100.
#NameMedian age
1Truesdale4.8 yrs
2Thayer13.0 yrs
3Frytown13.9 yrs
4Mineola14.4 yrs
5Arion15.3 yrs
6East Amana15.5 yrs
7Loveland18.4 yrs
8Harper22.3 yrs
9Arcadia22.8 yrs
10Bentley22.9 yrs
11Plano22.9 yrs
12Ames23.3 yrs
13Delphos23.3 yrs
14Mount Vernon23.7 yrs
15Lu Verne24.7 yrs
16South Amana25.0 yrs
17Beaver25.2 yrs
18Postville25.4 yrs
19Fredonia25.7 yrs
20University Park25.9 yrs
21Zwingle25.9 yrs
22Hartwick26.3 yrs
23Iowa City26.3 yrs
24Greenville26.5 yrs
25Valeria26.6 yrs
26Waucoma26.9 yrs
27Barnum27.1 yrs
28Luana27.2 yrs
29Lamoni27.3 yrs
30Webster27.3 yrs
31University Heights27.6 yrs
32Ayrshire27.7 yrs
33Coppock27.8 yrs
34Dougherty28.0 yrs
35Onslow28.0 yrs
36Fremont28.1 yrs
37Thor28.2 yrs
38Fayette28.3 yrs
39Coburg28.5 yrs
40Floris28.5 yrs
41Turin28.5 yrs
42West Chester28.5 yrs
43Watkins28.6 yrs
44Rowan28.7 yrs
45Bouton28.8 yrs
46Clutier28.8 yrs
47Martensdale29.0 yrs
48Marysville29.0 yrs
49Duncombe29.2 yrs
50Sioux Center29.3 yrs
51California Junction29.4 yrs
52Lovilia29.4 yrs
53Rippey29.4 yrs
54Coulter29.5 yrs
55Underwood29.5 yrs
56Wheatland29.5 yrs
57Richland29.7 yrs
58Bernard29.8 yrs
59Cedar Falls29.8 yrs
60Livermore29.8 yrs
61Ridgeway29.8 yrs
62McCallsburg29.9 yrs
63Hospers30.0 yrs
64Murray30.1 yrs
65Clare30.3 yrs
66Maysville30.3 yrs
67Cascade30.4 yrs
68Shannon City30.4 yrs
69Fruitland30.5 yrs
70Kimballton30.5 yrs
71Ollie30.5 yrs
72Goose Lake30.8 yrs
73Atalissa30.9 yrs
74Andover31.0 yrs
75Meservey31.0 yrs
76Cushing31.1 yrs
77Halbur31.2 yrs
78Royal31.2 yrs
79Storm Lake31.2 yrs
80Moville31.3 yrs
81Urbana31.3 yrs
82La Porte City31.6 yrs
83Randolph31.6 yrs
84Calmar31.7 yrs
85Ellsworth31.7 yrs
86Moulton31.7 yrs
87New Virginia31.7 yrs
88Orange City31.7 yrs
89Silver City31.7 yrs
90Aurora31.8 yrs
91Chatsworth31.8 yrs
92Delta31.8 yrs
93Melvin31.8 yrs
94North Liberty31.8 yrs
95Coggon31.9 yrs
96Ute31.9 yrs
97Forest City32.0 yrs
98Linden32.0 yrs
99Protivin32.0 yrs
100St. Lucas32.0 yrs

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