Olathe city, Kansas
Official LSAD Designation: Olathe city • Census GEOID: 2052575
• Johnson County
Demographics & Population Profile
Population and demographics for Olathe city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 150,025 | — | 2025 | Census |
| Median Age | 37.2 yrs | ±0.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 53,072 | ±860 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).