| Index | Selden | New York | National |
| Median home price | $633,194 | $503,498 | $326,622 |
| Median rent asked | $2,747 | $1,761 | $1,444 |
| Avg. people per household | 2.9 | 2.6 | 2.6 |
| Owner occupied households | 82.7% | 53.6% | 63.6% |
| Renter occupied households | 17.3% | 46.4% | 36.4% |

| Population | Home Price | National Avg. | |
| Stony Brook University, NY | 8,775 | $0 | 100% |
| Calverton, NY | 5,399 | $332,650 | 2% |
| Mastic Beach, NY | 16,076 | $442,556 | 35% |
| Mastic, NY | 15,624 | $485,233 | 49% |
| Middle Island, NY | 11,454 | $488,301 | 50% |
| Selden, NY | 21,786 | $633,194 | 94% |
| Population | Home Price | National Avg. | |
| Oxford, AL | 21,765 | $259,662 | 21% |
| Pleasant Prairie, WI | 21,762 | $455,353 | 39% |
| Cartersville, GA | 21,814 | $407,981 | 25% |
| Holiday, FL | 21,830 | $154,949 | 53% |
| Sanford, ME | 21,841 | $355,210 | 9% |
| Selden, NY | 21,786 | $633,194 | 94% |