Rankings IowaOldest by median age

Oldest Cities in Iowa by Median Age

The top 25 of 44 Iowa cities on GIS Map, ranked by highest median age.

#	City	County	Median age	Population
1	Clinton	Clinton	44 years	24,322
2	Carroll	Carroll	43.6 years	10,208
3	Atlantic	Cass	43.5 years	6,763
4	Keokuk	Lee	43.1 years	9,662
5	Newton	Jasper	42.6 years	15,700
6	Burlington	Des Moines	42.5 years	23,728
7	Mason City	Cerro Gordo	42.5 years	27,050
8	Fort Madison	Lee	42.1 years	10,133
9	Spencer	Clay	41.4 years	11,400
10	Boone	Boone	41.3 years	12,424
11	Bettendorf	Scott	40.9 years	39,647
12	Marion	Linn	40.6 years	41,896
13	Fairfield	Jefferson	40 years	9,456
14	Decorah	Winneshiek	39.5 years	7,535
15	Urbandale	Polk	39.2 years	46,595
16	Le Mars	Plymouth	39 years	10,640
17	Council Bluffs	Pottawattamie	38.7 years	62,586
18	Dubuque	Dubuque	38.1 years	59,174
19	Norwalk	Warren	37.8 years	14,183
20	Fort Dodge	Webster	37.6 years	24,827
21	Oskaloosa	Mahaska	37.6 years	11,504
22	Davenport	Scott	37.5 years	100,913
23	Clive	Polk	37.4 years	19,012
24	Johnston	Polk	37.4 years	24,384
25	Cedar Rapids	Linn	37.3 years	137,264

Top Iowa Counties

Counties ranked by highest median age.

1. Dickinson County48.7 years 2. Audubon County47 years 3. Fremont County46.8 years 4. Guthrie County46.7 years 5. Clayton County46.4 years 6. Adams County46.3 years 7. Sac County46.2 years 8. Hardin County45.4 years 9. Page County45.1 years 10. Jackson County44.7 years

Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates. Only cities covered by GIS Map with at least 1,000 residents are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Oldest Cities in Iowa by Median Age”, https://gismap.land/rankings/iowa/oldest-cities. Figures from U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

Oldest Cities in Iowa by Median Age

Top Iowa Counties

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