The typical owner-occupied home in West Islip is worth about $614,300, 45% above the New York median of $423,800 and 85% above the national median of $332,700. Owners pay a median $10,001 a year in property taxes, about 1.63% of their home's value, close to the New York rate of 1.55%. The median household earns $176,281 a year, so the median home costs 3.5 times the median income (4.9 times for New York). 95% of occupied homes here are lived in by their owners, and 69% of those owners still have a mortgage.
West Islip at a glance
| West Islip | New York | U.S. | |
|---|---|---|---|
| Median home value | $614,300 | $423,800 | $332,700 |
| Median property tax paid per year | $10,001 | $6,582 | $3,119 |
| Property tax as a share of value | 1.63% | 1.55% | 0.94% |
| Median household income | $176,281 | $85,974 | $80,734 |
| Homes lived in by their owners | 95% | 54% | 65% |
| Owner homes with a mortgage | 69% | 58% | 61% |
| Median monthly costs, owners with a mortgage | $3,521 | $2,555 | $1,963 |
| Those costs as a share of the owners' income | 23.2% | 22.5% | 21.0% |
| Median rent | $2,765 | $1,621 | $1,413 |
| Rent as a share of renters' income | 26.3% | 31.2% | 30.6% |
| Median year homes were built | 1960 | 1959 | 1980 |
| Vacant homes | 1.2% | 10.0% | 10.1% |
| Population | 26,865 | 19,852,366 | 334,922,499 |
What a typical home costs per month in West Islip
At this week's average 30-year rate of 7.11%, buying the median West Islip home of $614,300 with 20% down costs about $4,396 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $5,420, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $188,414 for the 20%-down payment. That payment is 30% of the median West Islip household income of $176,281; at that income and 20% down, the 28% guideline points to a home of about $575,000.
The median rent here is $2,765 a month, so owning the median home costs about $1,631 a month more than renting, before you count the equity you build and any tax benefits.
| Down payment | $122,860 |
|---|---|
| Loan amount | $491,440 |
| Principal and interest | $3,306 |
| Property taxes (1.63% a year) | $834 |
| Homeowners insurance (our estimate, 0.5% a year) | $256 |
| PMI | $0 |
| Total per month | $4,396 |
Change the numbers in the calculator
| Down payment | $21,500 |
|---|---|
| Loan amount | $603,173 |
| Principal and interest | $4,058 |
| Property taxes (1.63% a year) | $834 |
| Homeowners insurance (our estimate, 0.5% a year) | $256 |
| FHA mortgage insurance | $272 |
| Total per month | $5,420 |
Change the numbers in the calculator
Questions about home buying in West Islip
What is the median home value in West Islip?
About $614,300 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in West Islip?
Homeowners pay a median $10,001 a year, which is about 1.63% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in West Islip?
For the median home with 20% down at 7.11%, the payment is about $4,396 a month. Keeping that under 28% of gross income takes about $188,414 a year.
More about West Islip
- Mortgage Refinance in West Islip
- Debt Relief in West Islip
- Home Equity Loans in West Islip
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data