| Index | Black Rock | Arkansas | National |
| Median home price | $58,500 | $114,700 | $184,700 |
| Median rent asked | $518 | $689 | $949 |
| Avg. people per household | 2.6 | 2.5 | 2.6 |
| Owner occupied households | 81.0% | 65.7% | 63.6% |
| Renter occupied households | 19.0% | 34.3% | 36.4% |
| Population | Home Price | National Avg. | |
| Smithville, AR | 59 | $0 | 100% |
| Williford, AR | 70 | $47,500 | 74% |
| Alicia, AR | 154 | $49,400 | 73% |
| Sedgwick, AR | 168 | $61,700 | 67% |
| Portia, AR | 511 | $69,300 | 62% |
| Black Rock, AR | 854 | $58,500 | 68% |
| Population | Home Price | National Avg. | |
| Friendship, NY | 854 | $51,600 | 72% |
| Keys, OK | 854 | $166,000 | 10% |
| Seabeck, WA | 854 | $482,200 | 161% |
| Robbinsville, NC | 854 | $0 | 100% |
| Wedowee, AL | 854 | $133,900 | 28% |
| Black Rock, AR | 854 | $58,500 | 68% |
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