Winthrop St, Islip, NY Property Records

Suffolk County and Islip Town property records for 11 addresses on Winthrop St, Islip, NY · Last verified August 2026

Winthrop St Highlights

Properties 11
Median Sale Price $380,000
Deeds and Mortgages on File 12
Average Living Area 1,927 sq ft
Owner Occupied 82%
Median Annual Tax Bill $13,240
Average Year Built 1968
Median Ownership Tenure 4 years

Properties on Winthrop St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

1 Winthrop St

0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$590,000Apr 2024 $13,2402024 Amount on Record Sep 2015 2 Names on Record Assessor + 2 DocumentsUpdated Aug 2026

2 Winthrop St

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$177,000Jul 1999 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

3 Winthrop St

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,6232024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

4 Winthrop St

2,170 sqft · Built 1964 · 0.25 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$762,000Dec 2024 $13,8692024 Amount on Record Dec 2021 2 Names on Record Assessor + 2 DocumentsUpdated Aug 2026

5 Winthrop St

0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Names on Record Owner Occupied AssessorUpdated Aug 2026

6 Winthrop St

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

7 Winthrop St

1,684 sqft · Built 1972 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

8 Winthrop St

0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$380,000Jan 2005 Amount on Record Jun 1995 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

9 Winthrop St

0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$270,000Nov 2015 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

10 Winthrop St

0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$161,000Jan 2022 Amount on Record Nov 1994 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

12 Winthrop St

0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

Wildfire Risk on Winthrop St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskLow
this street's cells rank at the 2nd percentile of exposed land nationally · 3rd in New York
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
1 of 2 cells directly exposed · 2 adjoin burnable vegetation

Property Records in Nearby Streets