La Valley
- County:
- Lincoln County
- County Seat:
- No
- Area (mi²):
- 34.546
- State:
- South Dakota
La Valley is located in Lincoln County, South Dakota. La Valley has a 2025 population of 678 . La Valley is currently growing at a rate of 0.74% annually and its population has increased by 1.5% since the most recent census, which recorded a population of 668 in 2020.
The average household income in La Valley is $266,959 with a poverty rate of 5.67%. The median age in La Valley is 49.7 years: 59.1 years for males, and 40.9 years for females. For every 100 females there are 81.0 males.