
Union township
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 62.329
- State:
- Kansas
Union township is located in Butler County, Kansas. Union township has a 2025 population of 143. Union township is currently declining at a rate of 0% annually and its population has increased by 0.7% since the most recent census, which recorded a population of 142 in 2020.
The average household income in Union township is $36,540 with a poverty rate of 45.83%. The median age in Union township is 23.9 years: 34.6 years for males, and 23.8 years for females.