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Single Family ResidenceResidential
$592,405$389 / 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
Last sold for $590,000 on Sep 23, 2026

89 MADISON ST

ISELIN, NJ 08830
0
Baths
1,524 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$592K
$569K low$616K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$590,000 · Sep 23, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,818 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$74,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$54,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$74,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$74,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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(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
Robert Mascenick Elementary SchoolB
Elementary · Grades KG–5 · 0.1 mi
H
John F. Kennedy High SchoolC
High · Grades 9–12 · 0.6 mi
M
Iselin Middle SchoolB+
Middle · Grades 6–8 · 0.6 mi

District: Woodbridge Township School District

Neighborhood · ZIP 08830These 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.63
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.103

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.26%
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.1.4%
PopulationHow many people live in this area.21,263
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,830 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,782
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,794
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

89 Madison 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 more than 68% of homes in Iselin 08830
  • Costs less per square foot than 69% of homes in Iselin 08830
  • Bigger than 69% of homes in Iselin 08830
  • Has a smaller lot than 79% of homes in Iselin 08830
  • Older than 75% of homes in Middlesex County

What homes are worth in Iselin 08830

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

This home
$286K$944K

This home is worth more than 68% of homes in Iselin 08830.

How it measures up in Iselin 08830

The dot is this home. The mark in the middle is the typical home in Iselin 08830.

Estimated value$592,405
CheaperTypical $543,515Pricier

Pricier than 68% of homes nearby

Price per ft²$389
CheaperTypical $431Pricier

Pricier than 31% of homes nearby

Living area1,524 ft²
SmallerTypical 1,254 ft²Bigger

Bigger than 69% of homes nearby

Lot size0.11 ac
SmallerTypical 0.13 acBigger

Bigger than 21% of homes nearby

Year built1951
OlderTypical 1950Newer

Newer than 54% of homes nearby

How 89 Madison St ranks against every home in each area.
MeasureThis homeIselin 08830Middlesex County
Estimated valuepricier than$592,40568% of homes53% of homes
Price per ft²pricier than$38931% of homes66% of homes
Living areabigger than1,524 ft²69% of homes43% of homes
Lot sizebigger than0.11 ac21% of homes32% of homes
Year builtnewer than195154% of homes25% of homes

About 89 Madison St

How much is 89 Madison St, Iselin, NJ worth?

The TopHap Estimate for 89 Madison St, Iselin, NJ is $592,405 as of Oct 21, 2026. The likely range is $569,143 to $615,667. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 89 Madison St, Iselin, NJ last sell?

89 Madison St, Iselin, NJ last sold on Sep 23, 2026 for $590,000, according to the county's recorded deed.

How big is 89 Madison St, Iselin, NJ?

89 Madison St, Iselin, NJ has 1,524 square feet of living space and a 0.12-acre lot.

When was 89 Madison St, Iselin, NJ built?

89 Madison St, Iselin, NJ was built in 1951, making it 75 years old. The building has 2 stories.

What schools serve 89 Madison St, Iselin, NJ?

89 Madison St, Iselin, NJ is assigned to Robert Mascenick Elementary School (elementary), rated B; John F. Kennedy High School (high), rated C; Iselin Middle School (middle), rated B+. All sit in Woodbridge Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 89 Madison St, Iselin, NJ compare to other homes in Iselin 08830?

Among the 4,826 homes in Iselin 08830, it is worth more than 68% of them ($592,405 against a typical $543,515), its price per square foot is higher than 31% of them ($389 against a typical $431), it is bigger than 69% of them (1,524 ft² against a typical 1,254 ft²), its lot is bigger than 21% of them (0.11 ac against a typical 0.13 ac) and it is newer than 54% of them (1951 against a typical 1950). Measured against all of Middlesex County, it is worth more than 53% 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 89 Madison St, Iselin, NJ?

The 2025 property tax bill for 89 Madison St, Iselin, NJ was $8,818. The county assessed it at $74,800.

More homes on Madison St

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Assigned schools

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