
Lyon township
- County:
- Hamilton County
- County Seat:
- No
- Area (mi²):
- 36.111
- State:
- Iowa
Lyon township is located in Hamilton County, Iowa. Lyon township has a 2025 population of 1,564. Lyon township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Lyon township is $108,404 with a poverty rate of 8.12%. The median age in Lyon township is 40.8 years: 37.5 years for males, and 44.2 years for females.