
Lyon township
- County:
- Geary County
- County Seat:
- No
- Area (mi²):
- 43.247
- State:
- Kansas
Lyon township is located in Geary County, Kansas. Lyon township has a 2025 population of 262. Lyon township is currently declining at a rate of -1.13% annually and its population has decreased by -6.76% since the most recent census, which recorded a population of 281 in 2020.
The average household income in Lyon township is $146,521 with a poverty rate of 0%. The median age in Lyon township is 35.7 years: 35.3 years for males, and 38.3 years for females.