
Clay township
- County:
- St. Joseph County
- County Seat:
- No
- Area (mi²):
- 19.8
- State:
- Indiana
Clay township is located in St. Joseph County, Indiana. Clay township has a 2025 population of 34,446. Clay township is currently growing at a rate of 0.27% annually and its population has increased by 0.73% since the most recent census, which recorded a population of 34,198 in 2020.
The average household income in Clay township is $98,458 with a poverty rate of 7.51%. The median age in Clay township is 39.3 years: 37.9 years for males, and 40.6 years for females.