Allen
- County:
- Bennett County
- County Seat:
- No
- Area (mi²):
- 3.244
- State:
- South Dakota
Allen is a CDP located in Bennett County, South Dakota South Dakota. Unfortunately, the data for this location is currently limited or unavailable.
The median age in Allen is 20.2 years: 13.8 years for males, and 20.3 years for females. For every 100 females there are 71.7 males.