Most Affordable ZIP Codes in Rapid City, SD (2026)
The lowest entry prices that still hold a decent investability rating — cheap is only useful if the market underneath it is sound.
| # | ZIP | City | Home value | Rent | Cap rate | 5-yr growth |
|---|---|---|---|---|---|---|
| 1 | 57701 | Rapid City, SD | $306,548 | $1,474 | 3.75% | 5.9% |
| 2 | 57790 | Wall, SD | $321,138 | $909 | 2.21% | 8.0% |
| 3 | 57703 | Rapid City, SD | $364,395 | $1,538 | 3.29% | 5.6% |
| 4 | 57719 | Box Elder, SD | $372,292 | $1,541 | 3.23% | 5.6% |
| 5 | 57718 | Blackhawk, SD | $375,950 | $1,375 | 2.85% | 3.9% |
| 6 | 57785 | Sturgis, SD | $390,392 | $891 | 1.78% | 5.2% |
| 7 | 57761 | New Underwood, SD | $435,359 | $954 | 1.71% | 8.8% |
| 8 | 57793 | Sturgis, SD | $452,104 | $909 | 1.57% | 5.8% |
| 9 | 57702 | Rapid City, SD | $459,087 | $1,480 | 2.51% | 6.6% |
| 10 | 57730 | Custer, SD | $488,742 | $1,053 | 1.68% | 6.1% |
| 11 | 57745 | Hill City, SD | $489,059 | $1,170 | 1.87% | 6.4% |
| 12 | 57769 | Piedmont, SD | $490,819 | $1,224 | 1.95% | 6.1% |
| 13 | 57751 | Keystone, SD | $542,854 | $909 | 1.31% | 6.9% |
| 14 | 57744 | Hermosa, SD | $618,562 | $1,152 | 1.45% | 5.4% |
Ranked from Repit’s own ZIP-level data — Zillow home values and rents, HUD fair-market rents where Zillow has no coverage, and U.S. Census vacancy. Cap rate is gross: annual rent over purchase price, before financing and expenses. Every ZIP above links to its full free page. How we calculate this →
Same metro, different strategy
Cash Flow in Rapid City, SD · Appreciation in Rapid City, SD
Or see the full Rapid City, SD metro profile.