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Single Family ResidenceResidential
$419,472$524 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $54,500 on Dec 2, 2009

30 HEMLOCK ST

ISLIP, NY 11751
1
Baths
800 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.

Valuation

$419K
$373K low$466K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$54,500 · Dec 2, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,620 (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.$1,880 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$250
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,630
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$318,644

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.28
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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.

E
Lafrancis Hardiman Elementary School
Elementary · Grades PK–2 · 0.7 mi
H
Wyandanch Memorial High SchoolD
High · Grades 9–12 · 1.3 mi
M
Milton L. Olive Middle SchoolD+
Middle · Grades 6–8 · 1.4 mi

District: Wyandanch 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%

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Data 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

30 Hemlock 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.

  • Among the least valuable homes in Islip 11751
  • Costs more per square foot than 88% of homes in Wyandanch
  • Smaller than 98% of homes in Islip 11751
  • Has a bigger lot than 86% of homes in Wyandanch
  • Older than 85% of homes in Suffolk County

What homes are worth in Islip 11751

Each bar is how many homes fall in that price range. The marker is this home.

This home
$470K$1.8M

This home is worth less than almost all 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.

Estimated value$419,472
CheaperTypical $647,860Pricier

Cheaper than almost all homes nearby

Price per ft²$524
CheaperTypical $434Pricier

Pricier than 80% of homes nearby

Living area800 ft²
SmallerTypical 1,666 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.28 ac
SmallerTypical 0.24 acBigger

Bigger than 60% of homes nearby

Year built1950
OlderTypical 1957Newer

Newer than 36% of homes nearby

How 30 Hemlock St ranks against every home in each area.
MeasureThis homeWyandanchIslip 11751Suffolk County
Estimated valuepricier than$419,47215% of homesalmost no homes4% of homes
Price per ft²pricier than$52488% of homes80% of homes75% of homes
Living areabigger than800 ft²8% of homes2% of homes4% of homes
Lot sizebigger than0.28 ac86% of homes60% of homes49% of homes
Year builtnewer than195019% of homes36% of homes15% of homes

About 30 Hemlock St

How much is 30 Hemlock St, Islip, NY worth?

The TopHap Estimate for 30 Hemlock St, Islip, NY is $419,472 as of Aug 30, 2026. The likely range is $373,251 to $465,693. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Hemlock St, Islip, NY last sell?

30 Hemlock St, Islip, NY last sold on Dec 2, 2009 for $54,500, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 30 Hemlock St, Islip, NY?

30 Hemlock St, Islip, NY has 1 bathrooms, 800 square feet of living space and a 0.28-acre lot.

When was 30 Hemlock St, Islip, NY built?

30 Hemlock St, Islip, NY was built in 1950, making it 76 years old.

What schools serve 30 Hemlock St, Islip, NY?

30 Hemlock St, Islip, NY is assigned to Lafrancis Hardiman Elementary School (elementary); Wyandanch Memorial High School (high), rated D; Milton L. Olive Middle School (middle), rated D+. All sit in Wyandanch Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 30 Hemlock St, Islip, NY compare to other homes in Islip 11751?

Among the 4,166 homes in Islip 11751, it is worth more than almost none of them ($419,472 against a typical $647,860), its price per square foot is higher than 80% of them ($524 against a typical $434), it is bigger than 2% of them (800 ft² against a typical 1,666 ft²), its lot is bigger than 60% of them (0.28 ac against a typical 0.24 ac) and it is newer than 36% of them (1950 against a typical 1957). Measured against all of Suffolk County, it is worth more than 4% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 30 Hemlock St, Islip, NY?

The 2024 property tax bill for 30 Hemlock St, Islip, NY was $7,620. The county assessed it at $1,880.

More homes on Hemlock St

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