| Index | Greenlawn | New York | National |
| Median home price | $836,944 | $503,498 | $326,622 |
| Median rent asked | $1,383 | $1,761 | $1,444 |
| Avg. people per household | 2.7 | 2.6 | 2.6 |
| Owner occupied households | 83.1% | 53.6% | 63.6% |
| Renter occupied households | 16.9% | 46.4% | 36.4% |

| Population | Home Price | National Avg. | |
| Stony Brook University, NY | 8,775 | $0 | 100% |
| Wyandanch, NY | 11,925 | $532,585 | 63% |
| Central Islip, NY | 34,526 | $540,392 | 65% |
| North Bay Shore, NY | 20,198 | $580,848 | 78% |
| Roosevelt, NY | 17,011 | $585,157 | 79% |
| Greenlawn, NY | 15,169 | $836,944 | 156% |
| Population | Home Price | National Avg. | |
| Hereford, TX | 15,173 | $163,079 | 50% |
| Scottsbluff, NE | 15,165 | $214,579 | 34% |
| Grovetown, GA | 15,176 | $294,571 | 10% |
| Yankton, SD | 15,183 | $271,469 | 17% |
| Hampton Bays, NY | 15,184 | $932,015 | 185% |
| Greenlawn, NY | 15,169 | $836,944 | 156% |