| Index | Islandia | New York | National |
| Median home price | $598,624 | $503,498 | $326,622 |
| Median rent asked | $2,841 | $1,761 | $1,444 |
| Avg. people per household | 2.7 | 2.6 | 2.6 |
| Owner occupied households | 93.2% | 53.6% | 63.6% |
| Renter occupied households | 6.8% | 46.4% | 36.4% |

| Population | Home Price | National Avg. | |
| Stony Brook University, NY | 8,775 | $0 | 100% |
| Ocean Beach, NY | 32 | $0 | 100% |
| Saltaire, NY | 26 | $0 | 100% |
| Middle Island, NY | 11,454 | $488,301 | 50% |
| Wyandanch, NY | 11,925 | $532,585 | 63% |
| Islandia, NY | 3,426 | $598,624 | 83% |
| Population | Home Price | National Avg. | |
| Springdale, PA | 3,426 | $197,978 | 39% |
| Sonora, TX | 3,425 | $204,265 | 37% |
| Hollywood Park, TX | 3,424 | $620,318 | 90% |
| Hatfield, PA | 3,428 | $468,385 | 43% |
| Greensboro, GA | 3,428 | $155,745 | 52% |
| Islandia, NY | 3,426 | $598,624 | 83% |