Duplex (2 Units, Any Combination)Residential
Last sold for $448,000 on Dec 6, 2006
11 WELDON ST
ISLIP, NY 11751
0
Baths
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
Valuation
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$448,000 · Dec 6, 2006
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,888 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$38,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$29,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$538,028
Climate Risk
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.49 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.33
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(2)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Foreclosure Filings(2)
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EHM
Wing Elementary School
Elementary · Grades KG–1 · 1.1 mi
Islip High SchoolB+
High · Grades 9–12 · 1.4 mi
Islip Middle SchoolC+
Middle · Grades 7–8 · 1.6 mi
District: Islip Union Free School District
Neighborhood · ZIP 11751These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.15,527
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,057 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,597
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,797
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%
Owner Tools
Do you own this home?
Claim this homeData by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
11 Weldon St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Has a bigger lot than 70% of homes in Islip 11751
How it measures up in Islip 11751
The dot is this home. The mark in the middle is the typical home in Islip 11751.
Lot size0.33 ac
SmallerTypical 0.24 acBigger
Bigger than 70% of homes nearby
| Measure | This home | Islip | Islip 11751 | Suffolk County |
|---|---|---|---|---|
| Lot sizebigger than | 0.33 ac | 69% of homes | 70% of homes | 57% of homes |
About 11 Weldon St
When did 11 Weldon St, Islip, NY last sell?
11 Weldon St, Islip, NY last sold on Dec 6, 2006 for $448,000, according to the county's recorded deed.
What schools serve 11 Weldon St, Islip, NY?
11 Weldon St, Islip, NY is assigned to Wing Elementary School (elementary); Islip High School (high), rated B+; Islip Middle School (middle), rated C+. All sit in Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.
What are the property taxes on 11 Weldon St, Islip, NY?
The 2024 property tax bill for 11 Weldon St, Islip, NY was $12,888. The county assessed it at $38,200.
More homes on Weldon St
- 2 Weldon St$654K1,908 ft² · Sold $610K · Jun 2025
- 1 Weldon St1,844 ft² · Sold $550K · Aug 2019
- 12 Weldon St2,396 ft² · Sold $470K · Sep 2017
- 12 Weldon St871 ft² · Sold $470K · Sep 2017
- 8 Weldon St2,362 ft² · Sold $339K · Feb 2016
- 5 Weldon St$602K0.25 ac · Sold $332K · Mar 2008
- 10 Weldon St0.25 ac · Sold $424K · Jun 2007
- 9 Weldon St$632K0.27 ac · Sold $161K · Nov 1999
- 6 Weldon St$543K0.25 ac · Sold Jan 1900
- 3 Weldon St0.25 ac · Sold Jan 1900
- 4 Weldon St$532K0.25 ac · Sold Jan 1900
- 7 Weldon St$596K0.25 ac
Closest homes
- 10 Oxford St$715K93 ft · 0.54 ac · Sold $353K · Apr 2015
- 12 Weldon St129 ft · 871 ft² · Sold $470K · Sep 2017
- Weldon St107 ft · 2,614 ft² · Sold Jan 1900
- 12 Weldon St173 ft · 2,396 ft² · Sold $470K · Sep 2017
- 9 Weldon St$632K148 ft · 0.27 ac · Sold $161K · Nov 1999
- 7 Oxford St239 ft · 3,551 ft² · Sold Jan 1900
- 23 Bertram St$648K247 ft · 0.17 ac · Sold $350K · Aug 2011
- 8 Oxford St$771K216 ft · 3,097 ft² · Sold $425K · Apr 2020
More homes in Islip 11751
- 38 W Tamarack St$599K0.45 ac · Sold $656K · Aug 2026
- 68 E Bayberry Rd$1.9M1.32 ac · Sold $1.9M · Aug 2026
- 234 Cedar Ave$1.1M0.46 ac · Sold $1.1M · Aug 2026
- 816 Main St$642K1,132 ft² · Sold $630K · Aug 2026
- 36 Pine St$631K1,008 ft² · Sold $625K · Jul 2026
- 36 Wingam Dr$853K2,331 ft² · Sold $842K · Jul 2026
- 90 Willow Ave$729K2,040 ft² · Sold $720K · Jul 2026
- 149 Union Ave$694K1,539 ft² · Sold $685K · Jul 2026
- 191 Smith Ave$642K1,112 ft² · Sold $634K · Jul 2026
- 42 Richmond St$555K0.17 ac · Sold $550K · Jul 2026
- 45 Roosevelt Ave0.48 ac · Sold $625K · Jul 2026
- 17 Sutton Pl$673K2,178 ft² · Sold $664K · Jun 2026
Assigned schools
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