
Spring Valley township
- County:
- Dallas County
- County Seat:
- No
- Area (mi²):
- 35.344
- State:
- Iowa
Spring Valley township is located in Dallas County, Iowa. Spring Valley township has a 2025 population of 8,525. Spring Valley 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 Spring Valley township is $79,092 with a poverty rate of 10.79%. The median age in Spring Valley township is 40.3 years: 39 years for males, and 40.9 years for females.