| Index | Selden | New York | National |
| Median home price | $342,500 | $286,300 | $184,700 |
| Median rent asked | $1,843 | $1,159 | $949 |
| 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 | 8,574 | $0 | 100% |
| Calverton, NY | 5,280 | $184,900 | 0% |
| Mastic Beach, NY | 15,610 | $242,100 | 31% |
| Mastic, NY | 15,068 | $267,600 | 45% |
| Middle Island, NY | 11,030 | $274,700 | 49% |
| Selden, NY | 21,338 | $342,500 | 85% |
| Population | Home Price | National Avg. | |
| Cartersville, GA | 21,331 | $221,600 | 20% |
| Montclair, VA | 21,329 | $421,300 | 128% |
| La Porte, IN | 21,328 | $108,600 | 41% |
| Mountlake Terrace, WA | 21,328 | $424,700 | 130% |
| St. Andrews, SC | 21,355 | $100,100 | 46% |
| Selden, NY | 21,338 | $342,500 | 85% |
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