Allen township
- County:
- Lyon County
- County Seat:
- No
- Area (mi²):
- 36.365
- State:
- Kansas
Allen township is located in Lyon County, Kansas. Allen township has a 2026 population of 104. Allen township is currently declining at a rate of -2.8% annually and its population has decreased by -6.31% since the most recent census, which recorded a population of 111 in 2020.
The median household income in Allen township is $83,750 with a poverty rate of 0%. The median age in Allen township is 52.4 years: 39.3 years for males, and 58.5 years for females. For every 100 females there are 217.9 males.