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Single Family ResidenceResidential
$411,556$218 / 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 $295,999 on Jun 30, 2008

21 SIMPSON ST

TRENTON, NJ 08619
0
Baths
1,884 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.
1960
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$412K
$391K low$432K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$295,999 · Jun 30, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,572 (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.$204,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$44,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$204,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$204,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMERCER
Lot (acres)The size of the land the home sits on, from county records.0.11
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

H
Nottingham High School - NorthD
High · Grades 9–12 · 0.3 mi
E
Klockner Elementary SchoolD+
Elementary · Grades PK–5 · 0.7 mi
M
Richard C. Crockett Middle SchoolD+
Middle · Grades 6–8 · 3.5 mi

District: Hamilton Township School District

Neighborhood · ZIP 08619These 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.76
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 100.87

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.26,743
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,519 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$100,093
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,380
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

21 Simpson 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 less per square foot than 94% of homes in Trenton 08619
  • Bigger than 77% of homes in Trenton 08619
  • Has a smaller lot than 79% of homes in Trenton 08619

What homes are worth in Trenton 08619

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

This home
$244K$758K

This home is worth more than 48% of homes in Trenton 08619.

How it measures up in Trenton 08619

The dot is this home. The mark in the middle is the typical home in Trenton 08619.

Estimated value$411,556
CheaperTypical $417,683Pricier

Pricier than 48% of homes nearby

Price per ft²$218
CheaperTypical $285Pricier

Pricier than 6% of homes nearby

Living area1,884 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 77% of homes nearby

Lot size0.11 ac
SmallerTypical 0.19 acBigger

Bigger than 21% of homes nearby

Year built1960
OlderTypical 1961Newer

Newer than 50% of homes nearby

How 21 Simpson St ranks against every home in each area.
MeasureThis homeTrenton 08619Mercer County
Estimated valuepricier than$411,55648% of homes47% of homes
Price per ft²pricier than$2186% of homes26% of homes
Living areabigger than1,884 ft²77% of homes64% of homes
Lot sizebigger than0.11 ac21% of homes38% of homes
Year builtnewer than196050% of homes51% of homes

About 21 Simpson St

How much is 21 Simpson St, Trenton, NJ worth?

The TopHap Estimate for 21 Simpson St, Trenton, NJ is $411,556 as of Sep 24, 2026. The likely range is $391,142 to $431,970. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Simpson St, Trenton, NJ last sell?

21 Simpson St, Trenton, NJ last sold on Jun 30, 2008 for $295,999, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Simpson St, Trenton, NJ?

21 Simpson St, Trenton, NJ has 1,884 square feet of living space and a 0.11-acre lot.

When was 21 Simpson St, Trenton, NJ built?

21 Simpson St, Trenton, NJ was built in 1960, making it 66 years old. The building has 2 stories.

What schools serve 21 Simpson St, Trenton, NJ?

21 Simpson St, Trenton, NJ is assigned to Nottingham High School - North (high), rated D; Klockner Elementary School (elementary), rated D+; Richard C. Crockett Middle School (middle), rated D+. All sit in Hamilton Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Simpson St, Trenton, NJ compare to other homes in Trenton 08619?

Among the 7,669 homes in Trenton 08619, it is worth more than 48% of them ($411,556 against a typical $417,683), its price per square foot is higher than 6% of them ($218 against a typical $285), it is bigger than 77% of them (1,884 ft² against a typical 1,456 ft²), its lot is bigger than 21% of them (0.11 ac against a typical 0.19 ac) and it is newer than 50% of them (1960 against a typical 1961). Measured against all of Mercer County, it is worth more than 47% 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 21 Simpson St, Trenton, NJ?

The 2025 property tax bill for 21 Simpson St, Trenton, NJ was $7,572. The county assessed it at $204,200.

More homes on Simpson St

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Assigned schools

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