183 homes sold in West Islip in the last year, at a typical $781K
Almost every sale is a house. Below: what each kind of home sells for, what your budget buys, the best months to buy, how hard you’ll have to bid, and a shortcut to every site where West Islip homes are listed.
Every place West Islip homes are listed, in one stop
We don’t copy listings: the agents’ sites have the photos and the latest price changes. Set what you want once and we open each site already filtered to West Islip.
For sale
Rent
New, land & open houses
Links open the listing sites; TownRatings isn’t paid for them and doesn’t rank one above another. Rentals and government-owned homes come from sources outside the MLS.
Houses are 98% of West Islip’s sales, at a typical $763K (year to May 2026)
183 homes sold in the year to September 2026.
typical sale · 174 sold in the year to May 2026
- Per square foot
- $433NY $316
- Days to sell
- 34
- Sold over asking
- 61%
- Listings with a price cut
- 19%
Multi-family (2–4 units): 1 sold, typical $625K
Condos: 3 sold, typical $550K
Too few sales in 12 months for reliable figures.
Fewer homes sell than before 2022, at twice the 2016 price
183 sales in the last year, against 341 in 2021 and a low of 178 in 2013. The typical sale went from $394K in 2016 to $781K.
Source: Redfin Data Center, MLS sales; from June 2026 each month is a 3-month rolling window, its counts divided by 3. Typical price and $/sq ft are the monthly medians, weighted by sales. Redfin stopped publishing towns’ figures by property type after May 2026, so houses and condos are shown for the year to then.
What $800K buys in West Islip
Check a listing against what West Islip homes sold for
Against the town’s median price per square foot over the last 12 months. A rough check: condition, lot and location within town move a price more than this can see.
Bidding wars in West Islip are more common than before the pandemic, but two thirds fewer homes come up for sale
We read every month of West Islip’s home sales since 2012 so you don’t have to. Each figure covers 12 months, because a single month in a town is too few sales to mean much. Latest: the year to September 2026, 183 sales.
If you’re buying in West Islip
- Shop in May. It brings about 37 new listings a month, close to the busiest month, with fewer bidding wars (40% over asking).
- Expect to bid over asking. Buyers paid 103.1% of the list price on average; 68% paid over.
- You’ll usually have time. Only 15% of homes go under contract within two weeks; the typical one takes 31 days.
Spring brings the homes; summer brings the bidding wars
May has the most new listings (about 37 a month), but July is the most competitive: 46% of July sales close over asking. March has the least competition (32%).
Averages for each calendar month, 2015 on.
Nearly as heated as 2021, and hotter than New York
| West Islip now | 2017–19 | 2021 peak | NY now | |
|---|---|---|---|---|
| Sold over askingShare of sales that closed above the list price | 68% | 26% | 65% | 39% |
| Gone within two weeksShare of homes under contract within 14 days | 15% | 6% | 16% | 25% |
| Price paid vs. askingAverage sale price ÷ list price | 103.1% | 98% | 102.4% | 100.5% |
| Days to sellMedian days from listing to contract | 31 | 48 | 27 | 43 |
26 homes for sale on a typical day
That’s 68% fewer than in 2017–19 and well under 2012’s 137.
West Islip ranks 44th of 363 busy New York markets for bidding wars
Share of sales over asking in the last year, among towns with 60 or more sales. West Islip is one of the state’s hottest markets.
Source: Redfin Data Center, city figures, January 2012 to September 2026 (MLS sales, not seasonally adjusted; from June 2026 each month is a 3-month rolling window, its counts divided by 3). Ratios are weighted by homes sold; price cuts by homes for sale.
Four things worth knowing
New listings in May
The month with the most choice. December has the fewest, about 12.
Best time to buyTypical commute
The average one-way trip to work for people who live in West Islip.
Work & commuteCheck the flood map
Flood insurance isn’t in a standard policy, and lenders require it in FEMA flood zones. Check the address before you make an offer.
Natural hazardsLook up any property
Assessed value, lot size and every past sale of a home you’re eyeing are public, at the town or county assessor and the registry of deeds.
Brightwaters, North Babylon, Bay Shore and West Babylon sell for less a square foot
The busier markets within 25 miles of West Islip, by what sold. Prices, taxes and how far a paycheck goes next door are on Cost of living.
| Sold | Typical sale | $/sq ft | Over asking | Days to sell | |
|---|---|---|---|---|---|
| West Babylon | 298 | $673K | $415 | 66% | 27 |
| West Islip | 183 | $781K | $444 | 68% | 31 |
| North Babylon | 176 | $655K | $427 | 69% | 36 |
| Bay Shore | 149 | $632K | $420 | 59% | 32 |
| West Bay Shore | 49 | $786K | $446 | 59% | 43 |
| Baywood | 35 | $601K | $447 | 63% | 49 |
| Brightwaters | 20 | $892K | $382 | 67% | 59 |
Redfin Data Center, October 2025 to September 2026. Towns with fewer than 20 sales are left out, and Redfin doesn’t report every town separately.
Post your home to West Islip, free
Selling it yourself, renting out an apartment or looking for a roommate? Post it to West Islip. People who follow the town see it, and so do people comparing West Islip with their own town. No commission, no listing fee.
Questions about buying a home in West Islip
What do homes sell for in West Islip, NY?
183 homes sold in the year to September 2026 at a typical $781K, $444 a square foot.
Is West Islip a buyer’s or seller’s market?
A seller’s market: 35 homes were for sale in September 2026 and 23 sold, about 1.5 months of supply. Buyers paid 103.1% of asking on average.
When is the best time to buy in West Islip?
May brings the most new listings. The sales history shows which months have fewer bidding wars.
Where can I see homes for sale in West Islip?
Zillow, Redfin, Realtor.com and Homes.com all carry West Islip’s MLS listings; the search links above open each one filtered to West Islip.
Sales, prices, days on market and listings: Redfin Data Center (MLS, monthly, not seasonally adjusted; from June 2026 each month is a 3-month rolling window, its counts divided by 3). Property tax rate: Census American Community Survey. Two-bedroom rent: HUD Fair Market Rent. Typical home value: Zillow Home Value Index. Schools grade: TownRatings (how grades work).