| Index | Smithtown | New York | National |
| Median home price | $553,800 | $286,300 | $184,700 |
| Median rent asked | $1,473 | $1,159 | $949 |
| Avg. people per household | 2.4 | 2.6 | 2.6 |
| Owner occupied households | 89.8% | 53.6% | 63.6% |
| Renter occupied households | 10.2% | 46.4% | 36.4% |
| Population | Home Price | National Avg. | |
| Stony Brook University, NY | 8,574 | $0 | 100% |
| Ocean Beach, NY | 31 | $0 | 100% |
| Middle Island, NY | 11,030 | $274,700 | 49% |
| Wyandanch, NY | 11,632 | $294,200 | 59% |
| Central Islip, NY | 33,591 | $297,100 | 61% |
| Smithtown, NY | 26,197 | $553,800 | 200% |
| Population | Home Price | National Avg. | |
| Troy, OH | 26,176 | $144,100 | 22% |
| Clarksburg, MD | 26,234 | $514,200 | 178% |
| Galt, CA | 26,235 | $356,700 | 93% |
| Belmont, MA | 26,158 | $902,500 | 389% |
| University Park, FL | 26,150 | $249,500 | 35% |
| Smithtown, NY | 26,197 | $553,800 | 200% |
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