Total Population in Johnson County, IA
ACS 2024 5-Year Estimates
How Johnson County Compares
National Distribution
Where Johnson County falls among all 3,222 U.S. counties for total population.
■ Johnson County: 156,639
Ranking Context
| Rank | County | Value |
|---|---|---|
| #440 | Ouachita Parish, LA | 158,480 |
| #441 | Franklin County, PA | 157,379 |
| #442 | Alexandria city, VA | 156,976 |
| #443 | Johnson County, IA | 156,639 |
| #444 | Bibb County, GA | 156,578 |
| #445 | Santa Fe County, NM | 156,105 |
| #446 | Merrimack County, NH | 155,967 |
Total Population in Johnson County, Iowa
Johnson County, Iowa has a total population of 156,639, which ranks #443 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Iowa, Johnson County ranks #4 of 99 out of 99 counties. This places it in the 86th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.