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Single Family ResidenceResidential
$543,343$324 / 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
Last sold for $250,000 on Nov 18, 2019

421 THOMAS ST

PERTH AMBOY, NJ 08861
0
Baths
1,678 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.
2,500 ft²
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$543K
$514K low$573K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$250,000 · Nov 18, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,215 (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.$258,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$86,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$172,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$258,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$258,500

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.0.06
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.

Foreclosure Filings(2)

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

H
Perth Amboy High SchoolD
High · Grades 9–12 · 0.5 mi
M
Samuel E. Shull Middle SchoolD-
Middle · Grades 6–8 · 0.7 mi
E
James J. Flynn Elementary SchoolD-
Elementary · Grades KG–5 · 0.7 mi

District: Perth Amboy City School District

Neighborhood · ZIP 08861These 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.124
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
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.59,006
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9,525 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,231
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,503
Average tempThe average temperature here across a full year.54°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.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

421 Thomas 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 73% of homes in Perth Amboy 08861
  • Costs less per square foot than 71% of homes in Middlesex County
  • Has a smaller lot than 77% of homes in Middlesex County
  • Newer than 92% of homes in Perth Amboy 08861

What homes are worth in Perth Amboy 08861

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

This home
$275K$781K

This home is worth more than 73% of homes in Perth Amboy 08861.

How it measures up in Perth Amboy 08861

The dot is this home. The mark in the middle is the typical home in Perth Amboy 08861.

Estimated value$543,343
CheaperTypical $477,770Pricier

Pricier than 73% of homes nearby

Price per ft²$324
CheaperTypical $313Pricier

Pricier than 57% of homes nearby

Living area1,678 ft²
SmallerTypical 1,584 ft²Bigger

Bigger than 57% of homes nearby

Lot size2,500 ft²
SmallerTypical 3,746 ft²Bigger

Bigger than 33% of homes nearby

Year built1996
OlderTypical 1929Newer

Newer than 92% of homes nearby

How 421 Thomas St ranks against every home in each area.
MeasureThis homePerth Amboy 08861Middlesex County
Estimated valuepricier than$543,34373% of homes41% of homes
Price per ft²pricier than$32457% of homes29% of homes
Living areabigger than1,678 ft²57% of homes53% of homes
Lot sizebigger than2,500 ft²33% of homes23% of homes
Year builtnewer than199692% of homes83% of homes

About 421 Thomas St

How much is 421 Thomas St, Perth Amboy, NJ worth?

The TopHap Estimate for 421 Thomas St, Perth Amboy, NJ is $543,343 as of Sep 24, 2026. The likely range is $514,023 to $572,663. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Thomas St, Perth Amboy, NJ last sell?

421 Thomas St, Perth Amboy, NJ last sold on Nov 18, 2019 for $250,000, according to the county's recorded deed.

How big is 421 Thomas St, Perth Amboy, NJ?

421 Thomas St, Perth Amboy, NJ has 1,678 square feet of living space and a 0.06-acre lot.

When was 421 Thomas St, Perth Amboy, NJ built?

421 Thomas St, Perth Amboy, NJ was built in 1996, making it 30 years old. The building has 2 stories.

What schools serve 421 Thomas St, Perth Amboy, NJ?

421 Thomas St, Perth Amboy, NJ is assigned to Perth Amboy High School (high), rated D; Samuel E. Shull Middle School (middle), rated D-; James J. Flynn Elementary School (elementary), rated D-. All sit in Perth Amboy City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Thomas St, Perth Amboy, NJ compare to other homes in Perth Amboy 08861?

Among the 8,555 homes in Perth Amboy 08861, it is worth more than 73% of them ($543,343 against a typical $477,770), its price per square foot is higher than 57% of them ($324 against a typical $313), it is bigger than 57% of them (1,678 ft² against a typical 1,584 ft²), its lot is bigger than 33% of them (2,500 ft² against a typical 3,746 ft²) and it is newer than 92% of them (1996 against a typical 1929). Measured against all of Middlesex County, it is worth more than 41% 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 421 Thomas St, Perth Amboy, NJ?

The 2025 property tax bill for 421 Thomas St, Perth Amboy, NJ was $8,215. The county assessed it at $258,500.

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