| Index | Walnut | Iowa | National |
| Median home price | $201,648 | $240,019 | $326,622 |
| Median rent asked | $1,178 | $1,071 | $1,444 |
| Avg. people per household | 2.1 | 2.4 | 2.6 |
| Owner occupied households | 71.4% | 71.1% | 63.6% |
| Renter occupied households | 28.6% | 28.9% | 36.4% |

| Population | Home Price | National Avg. | |
| Jacksonville, IA | 10 | $0 | 100% |
| Corley, IA | 7 | $0 | 100% |
| Lewis, IA | 532 | $100,943 | 69% |
| Kimballton, IA | 282 | $111,139 | 66% |
| Marne, IA | 134 | $128,884 | 61% |
| Walnut, IA | 761 | $201,648 | 38% |
| Population | Home Price | National Avg. | |
| New Haven, KY | 761 | $208,141 | 36% |
| Little Falls, ME | 761 | $312,280 | 4% |
| Ivalee, AL | 761 | $203,165 | 38% |
| Waverly, FL | 761 | $285,069 | 13% |
| Greenbush, MN | 761 | $154,250 | 53% |
| Walnut, IA | 761 | $201,648 | 38% |