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Single Family ResidenceResidential
$809,936
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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

257 RIVER RD

SMITHTOWN, NY 11787
0
Baths
1.68 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$810K
$744K low$876K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,913 (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.$7,740 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$690
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$7,050
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$967,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUFFOLK
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Dogwood Elementary SchoolB
Elementary · Grades KG–5 · 0.7 mi
M
Nesaquake Middle SchoolB
Middle · Grades 6–8 · 0.8 mi
H
Smithtown High School EastA+
High · Grades 9–12 · 1.2 mi

District: Smithtown Central School District

Neighborhood · ZIP 11787These 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.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
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.34,997
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,227 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,428
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,182
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

257 River Rd 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 67% of homes in Suffolk County
  • Among the largest lots in Smithtown 11787

What homes are worth in Smithtown 11787

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

This home
$531K$1.6M

This home is worth more than 53% of homes in Smithtown 11787.

How it measures up in Smithtown 11787

The dot is this home. The mark in the middle is the typical home in Smithtown 11787.

Estimated value$809,936
CheaperTypical $798,270Pricier

Pricier than 53% of homes nearby

Lot size1.68 ac
SmallerTypical 0.38 acBigger

Bigger than almost all homes nearby

How 257 River Rd ranks against every home in each area.
MeasureThis homeSmithtownSmithtown 11787Suffolk County
Estimated valuepricier than$809,93650% of homes53% of homes67% of homes
Lot sizebigger than1.68 ac98% of homesalmost all homes97% of homes

About 257 River Rd

How much is 257 River Rd, Smithtown, NY worth?

The TopHap Estimate for 257 River Rd, Smithtown, NY is $809,936 as of Jul 14, 2026. The likely range is $743,617 to $876,255. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 257 River Rd, Smithtown, NY last sell?

257 River Rd, Smithtown, NY last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 257 River Rd, Smithtown, NY?

257 River Rd, Smithtown, NY is assigned to Dogwood Elementary School (elementary), rated B; Nesaquake Middle School (middle), rated B; Smithtown High School East (high), rated A+. All sit in Smithtown Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 257 River Rd, Smithtown, NY compare to other homes in Smithtown 11787?

Among the 11,478 homes in Smithtown 11787, it is worth more than 53% of them ($809,936 against a typical $798,270) and its lot is bigger than almost all of them (1.68 ac against a typical 0.38 ac). Measured against all of Suffolk County, it is worth more than 67% 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 257 River Rd, Smithtown, NY?

The 2024 property tax bill for 257 River Rd, Smithtown, NY was $18,913. The county assessed it at $7,740.

More homes on River Rd

Closest homes

More homes in Smithtown 11787

Assigned schools

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