| Index | Seneca | South Dakota | National |
| Median home price | $42,500 | $146,700 | $184,700 |
| Median rent asked | $0 | $676 | $949 |
| Avg. people per household | 0.9 | 2.4 | 2.6 |
| Owner occupied households | 100.0% | 67.8% | 63.6% |
| Renter occupied households | 0.0% | 32.2% | 36.4% |
| 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. |
| Tolstoy, SD | 29 | $0 | 100% |
| Lebanon, SD | 23 | $9,999 | 95% |
| Onaka, SD | 12 | $9,999 | 95% |
| Hoven, SD | 434 | $59,200 | 68% |
| Seneca, SD | 9 | $42,500 | 77% |
| City, State | Population | Home Price | National Avg. |
| Calvin, ND | 9 | $0 | 100% |
| Tobin, CA | 9 | $0 | 100% |
| Tavistock, NJ | 9 | $0 | 100% |
| Posey, CA | 9 | $0 | 100% |
| Braddock, ND | 9 | $0 | 100% |
| Seneca, SD | 9 | $42,500 | 77% |