
Lansing
- County:
- Leavenworth County
- County Seat:
- No
- Area (mi²):
- 12.298
- State:
- Kansas
Lansing is a city located in Leavenworth County, Kansas. Lansing has a 2025 population of 11,211. Lansing is currently declining at a rate of -0.04% annually and its population has decreased by -0.22% since the most recent census, which recorded a population of 11,236 in 2020.
The average household income in Lansing is $114,292 with a poverty rate of 5.22%. The median age in Lansing is 39.1 years: 37.3 years for males, and 39.6 years for females.