| HOUSING | West Islip | Amityville | United States |
| Median Home Age | 50.9 | 55.3 | 35.1 |
| Median Home Cost | $353,600 | $255,100 | $153,800 |
| Home Appreciation | -3.48% | -3.28% | 1.62% |
| Homes Owned | 89.92% | 65.47% | 57.69% |
| Housing Vacant | 2.44% | 7.68% | 11.38% |
| Homes Rented | 7.64% | 26.85% | 30.93% |
| Property Tax Rate | $26.26 | $26.26 | $11.20 |
| OWNER-OCCUPIED HOUSING UNITS BY VALUE | | | |
| Less Than $20,000 | 0.00% | 0.00% | 2.72% |
| $20,000 to $39,999 | 0.00% | 0.00% | 4.03% |
| $40,000 to $59,999 | 0.07% | 0.00% | 5.58% |
| $60,000 to $79,999 | 0.00% | 0.00% | 7.09% |
| $80,000 to $99,999 | 0.00% | 0.15% | 8.80% |
| $100,000 to $149,999 | 0.40% | 1.67% | 21.26% |
| $150,000 to $199,999 | 2.09% | 3.06% | 14.87% |
| $200,000 to $299,999 | 21.25% | 24.79% | 16.82% |
| $300,000 to $399,999 | 33.65% | 30.33% | 7.83% |
| $400,000 to $499,999 | 20.01% | 18.01% | 4.04% |
| $500,000 to $749,999 | 14.34% | 17.58% | 4.05% |
| $750,000 to $999,999 | 4.50% | 3.64% | 1.26% |
| $1,000,000 or more | 3.70% | 0.77% | 1.64% |
| HOUSING UNITS BY YEAR STRUCTURE BUILT | | | |
| 1999 to 2005 | 3.66% | 2.83% | 13.71% |
| 1995 to 1998 | 3.27% | 2.36% | 14.31% |
| 1990 to 1994 | 3.27% | 2.36% | 14.31% |
| 1980 to 1989 | 3.20% | 5.68% | 13.87% |
| 1970 to 1979 | 9.18% | 12.33% | 16.17% |
| 1960 to 1969 | 26.00% | 15.60% | 11.70% |
| 1950 to 1959 | 40.02% | 22.03% | 11.08% |
| 1940 to 1949 | 8.54% | 10.70% | 6.02% |
| 1939 or Earlier | 6.13% | 28.48% | 13.15% |
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