
Clay township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 27.438
- State:
- Iowa
Clay township is located in Washington County, Iowa. Clay township has a 2025 population of 152. Clay 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 Clay township is $171,103 with a poverty rate of 11.18%. The median age in Clay township is 50.8 years: 50.6 years for males, and 51.2 years for females.