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Single Family ResidenceResidential
$659,191$360 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

74 SAMPSON AVE

ISLANDIA, NY 11749
0
Baths
1,830 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.

Valuation

$659K
$633K low$686K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,950 (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.$41,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$27,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$578,873

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.0.38
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Andrew T Morrow SchoolD
Elementary · Grades KG–6 · 0.9 mi
M
Ralph Reed SchoolD
Middle · Grades 7–8 · 1.7 mi
H
Central Islip Senior High SchoolC-
High · Grades 9–12 · 2.4 mi

District: Central Islip Union Free School District

Neighborhood · ZIP 11749These 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.35
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.3,699
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,669 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,967
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,910
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

74 Sampson Ave 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.

  • Worth more than 65% of homes in Islandia 11749
  • Costs less per square foot than 69% of homes in Suffolk County
  • Has a bigger lot than 78% of homes in Islandia 11749
  • Newer than 74% of homes in Islandia 11749

What homes are worth in Islandia 11749

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

This home
$473K$2M

This home is worth more than 65% of homes in Islandia 11749.

How it measures up in Islandia 11749

The dot is this home. The mark in the middle is the typical home in Islandia 11749.

Estimated value$659,191
CheaperTypical $623,868Pricier

Pricier than 65% of homes nearby

Price per ft²$360
CheaperTypical $339Pricier

Pricier than 62% of homes nearby

Living area1,830 ft²
SmallerTypical 1,800 ft²Bigger

Bigger than 53% of homes nearby

Lot size0.38 ac
SmallerTypical 0.25 acBigger

Bigger than 78% of homes nearby

Year built1985
OlderTypical 1969Newer

Newer than 74% of homes nearby

How 74 Sampson Ave ranks against every home in each area.
MeasureThis homeIslandia 11749Suffolk County
Estimated valuepricier than$659,19165% of homes42% of homes
Price per ft²pricier than$36062% of homes31% of homes
Living areabigger than1,830 ft²53% of homes58% of homes
Lot sizebigger than0.38 ac78% of homes65% of homes
Year builtnewer than198574% of homes69% of homes

About 74 Sampson Ave

How much is 74 Sampson Ave, Islandia, NY worth?

The TopHap Estimate for 74 Sampson Ave, Islandia, NY is $659,191 as of Oct 21, 2026. The likely range is $632,859 to $685,523. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 74 Sampson Ave, Islandia, NY last sell?

74 Sampson Ave, Islandia, NY last sold on Oct 25, 2021, according to the county's recorded deed.

How big is 74 Sampson Ave, Islandia, NY?

74 Sampson Ave, Islandia, NY has 1,830 square feet of living space and a 0.38-acre lot.

When was 74 Sampson Ave, Islandia, NY built?

74 Sampson Ave, Islandia, NY was built in 1985, making it 41 years old.

What schools serve 74 Sampson Ave, Islandia, NY?

74 Sampson Ave, Islandia, NY is assigned to Andrew T Morrow School (elementary), rated D; Ralph Reed School (middle), rated D; Central Islip Senior High School (high), rated C-. All sit in Central Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 74 Sampson Ave, Islandia, NY compare to other homes in Islandia 11749?

Among the 1,085 homes in Islandia 11749, it is worth more than 65% of them ($659,191 against a typical $623,868), its price per square foot is higher than 62% of them ($360 against a typical $339), it is bigger than 53% of them (1,830 ft² against a typical 1,800 ft²), its lot is bigger than 78% of them (0.38 ac against a typical 0.25 ac) and it is newer than 74% of them (1985 against a typical 1969). Measured against all of Suffolk County, it is worth more than 42% 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 74 Sampson Ave, Islandia, NY?

The 2024 property tax bill for 74 Sampson Ave, Islandia, NY was $11,950. The county assessed it at $41,100.

More homes on Sampson Ave

Closest homes

More homes in Islandia 11749

Assigned schools

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