
Gladstone
- County:
- Clay County
- County Seat:
- No
- Area (mi²):
- 8.08
- State:
- Missouri
Gladstone is a city located in Clay County, Missouri. Gladstone has a 2025 population of 27,475. Gladstone is currently growing at a rate of 0.27% annually and its population has increased by 1.35% since the most recent census, which recorded a population of 27,109 in 2020.
The average household income in Gladstone is $88,410 with a poverty rate of 12.1%. The median age in Gladstone is 40.5 years: 38.7 years for males, and 43.1 years for females.