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Single Family ResidenceResidential
$633,176$373 / 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 94How 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

21 INTERSTATE ST

SUFFERN, NY 10901
2
Beds
2
Baths
1,698 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1942
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$633K
$593K low$674K 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.$44,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$15,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$29,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$44,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$590,185

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.Cape Cod
CountyRockland
Lot (acres)The size of the land the home sits on, from county records.0.22
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 504 ft²

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

E
Richard P. Connor Elementary SchoolB-
Elementary · Grades PK–2 · 0.5 mi
M
Suffern Middle SchoolA-
Middle · Grades 6–8 · 1.5 mi
H
Suffern High SchoolB+
High · Grades 9–12 · 2.7 mi

District: Ramapo Central School District (Suffern)

Neighborhood · ZIP 10901These 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.117
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 100.109

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.26,614
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,247 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,315
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,230
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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

21 Interstate 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.

  • Worth less than 69% of homes in Rockland County
  • Smaller than 65% of homes in Rockland County
  • Has a smaller lot than 66% of homes in Rockland County
  • Older than 87% of homes in Rockland County

What homes are worth in Suffern 10901

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

This home
$272K$2M

This home is worth more than 37% of homes in Suffern 10901.

How it measures up in Suffern 10901

The dot is this home. The mark in the middle is the typical home in Suffern 10901.

Estimated value$633,176
CheaperTypical $786,731Pricier

Pricier than 37% of homes nearby

Price per ft²$373
CheaperTypical $380Pricier

Pricier than 45% of homes nearby

Living area1,698 ft²
SmallerTypical 1,955 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.22 ac
SmallerTypical 0.39 acBigger

Bigger than 40% of homes nearby

Year built1942
OlderTypical 1970Newer

Newer than 16% of homes nearby

How 21 Interstate St ranks against every home in each area.
MeasureThis homeSuffern 10901Rockland County
Estimated valuepricier than$633,17637% of homes31% of homes
Price per ft²pricier than$37345% of homes48% of homes
Living areabigger than1,698 ft²41% of homes35% of homes
Lot sizebigger than0.22 ac40% of homes34% of homes
Year builtnewer than194216% of homes13% of homes

About 21 Interstate St

How much is 21 Interstate St, Suffern, NY worth?

The TopHap Estimate for 21 Interstate St, Suffern, NY is $633,176 as of Sep 24, 2026. The likely range is $592,737 to $673,615. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 21 Interstate St, Suffern, NY?

21 Interstate St, Suffern, NY has 2 bedrooms, 2 bathrooms, 1,698 square feet of living space and a 0.22-acre lot.

When was 21 Interstate St, Suffern, NY built?

21 Interstate St, Suffern, NY was built in 1942, making it 84 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Interstate St, Suffern, NY?

21 Interstate St, Suffern, NY is assigned to Richard P. Connor Elementary School (elementary), rated B-; Suffern Middle School (middle), rated A-; Suffern High School (high), rated B+. All sit in Ramapo Central School District (Suffern). Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Interstate St, Suffern, NY compare to other homes in Suffern 10901?

Among the 6,906 homes in Suffern 10901, it is worth more than 37% of them ($633,176 against a typical $786,731), its price per square foot is higher than 45% of them ($373 against a typical $380), it is bigger than 41% of them (1,698 ft² against a typical 1,955 ft²), its lot is bigger than 40% of them (0.22 ac against a typical 0.39 ac) and it is newer than 16% of them (1942 against a typical 1970). Measured against all of Rockland County, it is worth more than 31% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Interstate St

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Assigned schools

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