
Mannsville
- County:
- Johnston County
- County Seat:
- No
- Area (mi²):
- 3.035
- State:
- Oklahoma
Mannsville is a town located in Johnston County, Oklahoma. Mannsville has a 2025 population of 732. Mannsville is currently growing at a rate of 0.14% annually and its population has increased by 0.83% since the most recent census, which recorded a population of 726 in 2020.
The average household income in Mannsville is $50,030 with a poverty rate of 15.87%. The median age in Mannsville is 40.4 years: 44.8 years for males, and 34.7 years for females.