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Single Family ResidenceResidential
$712,655$429 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

191 S WILLIAM ST

PEARL RIVER, NY 10965
3
Beds
1
Baths
1,661 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$713K
$679K low$746K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$187,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$155,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$187,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$589,213

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyRockland
Lot (acres)The size of the land the home sits on, from county records.0.19
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 198 ft²

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.

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

E
Franklin Avenue SchoolB+
Elementary · Grades KG–4 · 0.3 mi
H
Pearl River High SchoolA
High · Grades 8–12 · 0.8 mi
M
Pearl River Middle SchoolA-
Middle · Grades 5–7 · 1.0 mi

District: Pearl River Union Free School District

Neighborhood · ZIP 10965These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.28%
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.0.9%
PopulationHow many people live in this area.15,807
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,914 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$139,939
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,425
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

191 S William 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.

  • Costs more per square foot than 73% of homes in Rockland County
  • Smaller than 66% of homes in Rockland County
  • Has a smaller lot than 82% of homes in Pearl River 10965
  • Older than 89% of homes in Rockland County

What homes are worth in Pearl River 10965

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

This home
$330K$1.2M

This home is worth more than 47% of homes in Pearl River 10965.

How it measures up in Pearl River 10965

The dot is this home. The mark in the middle is the typical home in Pearl River 10965.

Estimated value$712,655
CheaperTypical $725,000Pricier

Pricier than 47% of homes nearby

Price per ft²$429
CheaperTypical $415Pricier

Pricier than 60% of homes nearby

Living area1,661 ft²
SmallerTypical 1,788 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.19 ac
SmallerTypical 0.32 acBigger

Bigger than 18% of homes nearby

Year built1930
OlderTypical 1957Newer

Newer than 15% of homes nearby

How 191 S William St ranks against every home in each area.
MeasureThis homePearl River 10965Rockland County
Estimated valuepricier than$712,65547% of homes44% of homes
Price per ft²pricier than$42960% of homes73% of homes
Living areabigger than1,661 ft²42% of homes34% of homes
Lot sizebigger than0.19 ac18% of homes32% of homes
Year builtnewer than193015% of homes11% of homes

About 191 S William St

How much is 191 S William St, Pearl River, NY worth?

The TopHap Estimate for 191 S William St, Pearl River, NY is $712,655 as of Sep 24, 2026. The likely range is $678,898 to $746,413. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 191 S William St, Pearl River, NY?

191 S William St, Pearl River, NY has 3 bedrooms, 1 bathrooms, 1,661 square feet of living space and a 0.19-acre lot.

When was 191 S William St, Pearl River, NY built?

191 S William St, Pearl River, NY was built in 1930, making it 96 years old. It is a ranch home. The building has 1 story.

What schools serve 191 S William St, Pearl River, NY?

191 S William St, Pearl River, NY is assigned to Franklin Avenue School (elementary), rated B+; Pearl River High School (high), rated A; Pearl River Middle School (middle), rated A-. All sit in Pearl River Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 191 S William St, Pearl River, NY compare to other homes in Pearl River 10965?

Among the 4,733 homes in Pearl River 10965, it is worth more than 47% of them ($712,655 against a typical $725,000), its price per square foot is higher than 60% of them ($429 against a typical $415), it is bigger than 42% of them (1,661 ft² against a typical 1,788 ft²), its lot is bigger than 18% of them (0.19 ac against a typical 0.32 ac) and it is newer than 15% of them (1930 against a typical 1957). Measured against all of Rockland County, it is worth more than 44% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on S William St

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Assigned schools

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