| Index | Barnum Island | New York | National |
| Median home price | $916,393 | $503,498 | $326,622 |
| Median rent asked | $0 | $1,761 | $1,444 |
| Avg. people per household | 2.4 | 2.6 | 2.6 |
| Owner occupied households | 78.9% | 53.6% | 63.6% |
| Renter occupied households | 21.1% | 46.4% | 36.4% |

| Population | Home Price | National Avg. | |
| Wyandanch, NY | 11,925 | $532,585 | 63% |
| Roosevelt, NY | 17,011 | $585,157 | 79% |
| Roslyn, NY | 2,998 | $594,028 | 82% |
| North Amityville, NY | 19,627 | $612,962 | 88% |
| North Lindenhurst, NY | 11,096 | $613,077 | 88% |
| Barnum Island, NY | 2,675 | $916,393 | 181% |
| Population | Home Price | National Avg. | |
| Jefferson, MD | 2,675 | $661,320 | 102% |
| Missouri Valley, IA | 2,675 | $168,512 | 48% |
| Mountain View CDP, CA | 2,675 | $595,676 | 82% |
| Cabool, MO | 2,676 | $151,338 | 54% |
| Devola, OH | 2,674 | $324,736 | 1% |
| Barnum Island, NY | 2,675 | $916,393 | 181% |