| Index | Ernstville | Maryland | National |
| Median home price | $0 | $517,567 | $326,622 |
| Median rent asked | $0 | $1,931 | $1,444 |
| Avg. people per household | 1.0 | 2.6 | 2.6 |
| Owner occupied households | 100.0% | 66.5% | 63.6% |
| Renter occupied households | 0.0% | 33.5% | 36.4% |

| Population | Home Price | National Avg. | |
| Big Pool, MD | 87 | $0 | 100% |
| Fairview, MD | 16 | $0 | 100% |
| Mercersville, MD | 195 | $0 | 100% |
| Big Spring, MD | 51 | $0 | 100% |
| Bakersville, MD | 0 | $0 | 100% |
| Ernstville, MD | 26 | $0 | 100% |
| Population | Home Price | National Avg. | |
| Saltaire, NY | 26 | $0 | 100% |
| Macomb, OK | 26 | $0 | 100% |
| Ryan Park, WY | 26 | $0 | 100% |
| St. Onge, SD | 26 | $0 | 100% |
| Mendeltna, AK | 26 | $0 | 100% |
| Ernstville, MD | 26 | $0 | 100% |