Total Population in Johnson County, KS
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: 620,631
Ranking Context
| Rank | County | Value |
|---|---|---|
| #109 | Monmouth County, NJ | 645,353 |
| #110 | Brevard County, FL | 632,780 |
| #111 | Western Connecticut Planning Region, CT | 627,071 |
| #112 | Johnson County, KS | 620,631 |
| #113 | Pasco County, FL | 611,444 |
| #114 | Washington County, OR | 603,947 |
| #115 | Anne Arundel County, MD | 598,166 |
Total Population in Johnson County, Kansas
Johnson County, Kansas has a total population of 620,631, which ranks #112 of 3,222 out of 3,222 counties nationwide. This is 99.8% below the national value of 330M.
Within Kansas, Johnson County ranks #1 of 105 out of 105 counties. This places it in the 97th 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.