| Index | Walnut Grove CDP (Hardin County) | Tennessee | National |
| Median home price | $0 | $262,129 | $326,622 |
| Median rent asked | $0 | $1,162 | $1,444 |
| Avg. people per household | 1.7 | 2.5 | 2.6 |
| Owner occupied households | 64.0% | 66.3% | 63.6% |
| Renter occupied households | 36.0% | 33.7% | 36.4% |

| Population | Home Price | National Avg. | |
| Adairville, KY | 892 | $143,480 | 56% |
| Guthrie, KY | 1,350 | $200,473 | 39% |
| Cedar Hill, TN | 276 | $214,247 | 34% |
| Adams, TN | 623 | $224,846 | 31% |
| Trenton, KY | 410 | $257,763 | 21% |
| Walnut Grove CDP (Hardin County), TN | 261 | $0 | 100% |
| Population | Home Price | National Avg. | |
| Hunter, ND | 261 | $188,312 | 42% |
| Watha, NC | 261 | $239,885 | 27% |
| Elmo, MT | 261 | $0 | 100% |
| Hammond, NY | 261 | $133,365 | 59% |
| Horntown, VA | 261 | $279,204 | 15% |
| Walnut Grove CDP (Hardin County), TN | 261 | $0 | 100% |