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About Allen
Set in the southwestern part of South Dakota, Allen is a small unincorporated community.
Allen holds the status of a census-designated place — a real, named community that residents call home, governed at the county level. The community covers 3.24 square miles.
📰 Allen News Today
- South Dakota welcomes Josh Allen as new assistant coach, director of operations University of South Dakota Athletics · Aug 10
- Allen Joe Stucky Obituary Aug 11, 2026 Miller Funeral Home · Aug 11
- Allen Schoenfish Obituary Jun 18, 2026 Wintz and Ray Funeral Home · Jun 18
- Allen Collins Obituary (1956 - 2026) - Dakota Dunes, South Dakota, ID - Idaho State Journal Legacy obituary · Jul 31
- U.S. Marshals offer $25,000 reward for South Dakota fugitive on 15 Most Wanted list KOTA Territory News · Jul 10
Live headlines via Google News — updates through the day.
What Makes Allen Unique
- One of 8 places in the US named Allen — but the South Dakota one has a character all its own.
- An unincorporated community — no city hall of its own, which often means lower local taxes and county-managed services.
- Positioned in southwestern South Dakota, convenient to the region's corridors and crossings.
Why People Love It Here
- A tight community feel that bigger cities can't replicate.
- Cost of living typically runs below the big-metro average.
- Well connected: 3+ neighboring communities within 17 miles.
🏫 Schools in Allen
- American Horse School
Public schools, U.S. Dept. of Education (NCES) 2023–24 directory.
⚡ Quick Facts
StateSouth Dakota
TypeCDP
Population (2024)—
Land area3.24 sq mi
Coordinates43.2791, -101.9265