
Tonganoxie
- County:
- Leavenworth County
- County Seat:
- No
- Area (mi²):
- 4.058
- State:
- Kansas
Tonganoxie is a city located in Leavenworth County, Kansas. Tonganoxie has a 2025 population of 6,442. Tonganoxie is currently growing at a rate of 2.71% annually and its population has increased by 15.2% since the most recent census, which recorded a population of 5,592 in 2020.
The average household income in Tonganoxie is $81,281 with a poverty rate of 11.39%. The median age in Tonganoxie is 37 years: 31.4 years for males, and 39.1 years for females.