Median Age in Louisa County, IA
ACS 2024 5-Year Estimates
41.9 years
Rank #1,520/3,222 · #55 in IA
53th
Louisa 41.9 years
IA 38.6 years +8.5%
US 38.9 years +7.7%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Louisa County's median age of 41.9 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Louisa County for median age.
Nearby Rankings
Full ranking →| #1,517 | Tazewell County, IL | 41.9 years |
| #1,518 | Perry County, IN | 41.9 years |
| #1,519 | Grundy County, IA | 41.9 years |
| #1,520 | Louisa County, IA | 41.9 years |
| #1,521 | Lucas County, IA | 41.9 years |
| #1,522 | Mitchell County, IA | 41.9 years |
| #1,523 | Palo Alto County, IA | 41.9 years |
About Median Age
Louisa County, Iowa has a median age of 41.9 years, ranking #1,520 of 3,222 counties nationwide — 7.7% above the national value of 38.9 years. Within Iowa, it ranks #55 of 99. This places it in the 53th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.