Public Data Map Platform · ACS 2024 5-year

Iowa County Median Age

Explore ACS 2024 five-year median-age estimates across all 99 Iowa counties.

Source: U.S. Census Bureau, American Community Survey. Geography: Census TIGER/Line county boundaries (2025).

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Iowa counties

Median age

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County ranking

99 counties · default order follows the validated publication bundle.

Median age distribution

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Iowa county Median age estimates. Select sortable headings to reorder; select a county name for detail.
42.4 ±0.8
46.3 ±0.8
43.1 ±0.7
43.5 ±1.0
47.0 ±0.9
43.1 ±0.7
35.7 ±0.2
42.4 ±0.9
39.0 ±0.7
40.3 ±0.4
35.6 ±0.4
43.7 ±0.3
42.8 ±0.7
41.1 ±0.6
43.5 ±0.6
44.0 ±0.4
44.0 ±0.4
44.0 ±0.7
43.1 ±0.9
37.9 ±1.9
42.3 ±0.8
46.4 ±0.4
42.4 ±0.7
37.9 ±2.5
36.1 ±0.3
36.3 ±1.0
36.1 ±0.6
43.4 ±0.4
42.3 ±0.7
48.7 ±1.0
39.1 ±0.4
42.9 ±1.2
43.9 ±0.4
43.5 ±0.8
42.7 ±0.8
46.8 ±0.9
44.6 ±0.4
41.9 ±0.6
46.7 ±0.5
41.7 ±0.8
44.6 ±0.4
45.4 ±0.4
42.1 ±0.6
41.1 ±0.6
39.2 ±0.8
42.1 ±0.8
42.0 ±0.8
42.4 ±0.7
44.7 ±0.7
41.3 ±0.6
43.7 ±0.6
31.0 ±0.2
42.8 ±0.5
43.4 ±0.6
44.2 ±0.8
43.6 ±0.5
39.0 ±0.3
41.9 ±0.6
41.9 ±1.5
38.2 ±0.3
40.6 ±1.0
39.0 ±0.8
39.9 ±1.1
38.5 ±0.7
42.1 ±0.7
41.9 ±0.5
43.7 ±0.8
41.8 ±2.7
43.5 ±0.5
39.6 ±0.6
39.5 ±0.8
43.1 ±0.9
45.1 ±0.6
41.9 ±0.8
41.3 ±0.7
43.7 ±0.5
36.2 ±0.2
40.1 ±0.3
41.0 ±1.0
44.5 ±0.8
46.2 ±0.7
39.4 ±0.3
44.3 ±0.7
33.8 ±0.3
26.9 ±0.3
41.5 ±0.9
43.8 ±0.7
40.5 ±0.7
44.7 ±0.2
39.2 ±0.9
38.8 ±0.4
40.7 ±0.7
41.5 ±0.6
39.7 ±0.5
42.7 ±1.4
42.6 ±0.5
36.1 ±0.4
44.1 ±0.5
39.4 ±1.2

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Method and limitations

The displayed value is the ACS Data Profile DP05_0018E direct median-age estimate in years.

This is a five-year ACS survey estimate. DP05_0018M is the ACS 90-percent-confidence MOE. null estimate with source state valid, missing, suppressed, or invalid; zero remains valid. Five equal-width color bands span the valid values in this state; colors are not comparable across states.

See the ACS user notes and the downloadable provenance file for definitions, source fields, inputs, retrieval receipt, and checksums.