
Union township
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 42.116
- State:
- Kansas
Union township is located in Jefferson County, Kansas. Union township has a 2025 population of 1,625. Union township is currently declining at a rate of -0.49% annually and its population has decreased by -1.81% since the most recent census, which recorded a population of 1,655 in 2020.
The average household income in Union township is $90,128 with a poverty rate of 4.81%. The median age in Union township is 44.2 years: 44.6 years for males, and 42.9 years for females.