| Index | Keystone | South Dakota | National |
| Median home price | $270,300 | $260,531 | $326,622 |
| Median rent asked | $633 | $1,032 | $1,444 |
| Avg. people per household | 3.1 | 2.4 | 2.6 |
| Owner occupied households | 57.8% | 67.8% | 63.6% |
| Renter occupied households | 42.2% | 32.2% | 36.4% |

| Population | Home Price | National Avg. | |
| Hermosa, SD | 424 | $118,936 | 64% |
| Fairburn, SD | 109 | $122,832 | 62% |
| Custer, SD | 2,402 | $256,230 | 22% |
| Hill City, SD | 601 | $340,533 | 4% |
| Rapid City, SD | 79,549 | $341,074 | 4% |
| Keystone, SD | 561 | $270,300 | 17% |
| Population | Home Price | National Avg. | |
| West Hamlin, WV | 561 | $222,030 | 32% |
| Ava, IL | 561 | $118,930 | 64% |
| St. Paul, KS | 561 | $142,916 | 56% |
| Savannah, NY | 561 | $113,814 | 65% |
| Stewartsville, NJ | 561 | $591,170 | 81% |
| Keystone, SD | 561 | $270,300 | 17% |