| Index | Seneca | South Dakota | National |
| Median home price | $92,300 | $135,700 | $175,700 |
| Median rent asked | $0 | $648 | $920 |
| Avg. people per household | 1.5 | 2.4 | 2.6 |
| Owner occupied households | 100.0% | 68.0% | 64.4% |
| Renter occupied households | 0.0% | 32.0% | 35.6% |
| Index | Seneca | South Dakota | National |
| Zillow home value index | n/a | $171,300 | $196,500 |
| Year over year appreciation rate | n/a | 0.06% | 6.79% |
| 5 year average appreciation rate | n/a | 4.33% | 5.28% |
| 10 year average appreciation rate | n/a | 2.27% | 0.01% |
| City, State | Population | Home Price | National Avg. |
| Lebanon, SD | 35 | $9,999 | 94% |
| Onaka, SD | 14 | $19,400 | 89% |
| Tolstoy, SD | 20 | $36,300 | 79% |
| Hoven, SD | 422 | $53,300 | 70% |
| Seneca, SD | 50 | $92,300 | 47% |
| City, State | Population | Home Price | National Avg. |
| Simpson, KS | 50 | $27,500 | 84% |
| Flat Rock, OH | 50 | $0 | 100% |
| Norcross, MN | 50 | $46,700 | 73% |
| Silver Lake, OR | 50 | $0 | 100% |
| Leggett, NC | 50 | $95,000 | 46% |
| Seneca, SD | 50 | $92,300 | 47% |