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Single Family ResidenceResidential
$158,284$69 / 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 85How 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

509 MONMOUTH ST

TRENTON, NJ 08609
0
Baths
2,288 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.
2,509 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$158K
$135K low$181K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,581 (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.$60,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$60,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$60,800

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.0.06
ConstructionThe main material the home's frame and walls are built from.Brick
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

H
Trenton Central High SchoolF
High · Grades 10–12 · 0.3 mi
E
Patton J. Hill Elementary SchoolF
Elementary · Grades PK–3 · 0.5 mi
M
Dr. Martin Luther King, Jr. Middle School
Middle · Grades 7–8 · 0.9 mi

District: Trenton City School District

Neighborhood · ZIP 08609These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.86

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.13,055
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,666 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,686
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,241
Average tempThe average temperature here across a full year.54°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

509 Monmouth 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 94% of homes in Mercer County
  • Among the lowest price per square foot in Mercer County
  • Bigger than 91% of homes in Trenton 08609
  • Has a bigger lot than 76% of homes in Trenton Station
  • Older than 90% of homes in Mercer County

What homes are worth in Trenton 08609

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

This home
$108K$411K

This home is worth more than 25% of homes in Trenton 08609.

How it measures up in Trenton 08609

The dot is this home. The mark in the middle is the typical home in Trenton 08609.

Estimated value$158,284
CheaperTypical $194,236Pricier

Pricier than 25% of homes nearby

Price per ft²$69
CheaperTypical $137Pricier

Cheaper than almost all homes nearby

Living area2,288 ft²
SmallerTypical 1,368 ft²Bigger

Bigger than 91% of homes nearby

Lot size2,509 ft²
SmallerTypical 2,091 ft²Bigger

Bigger than 70% of homes nearby

Year built1900
OlderTypical 1915Newer

Newer than 35% of homes nearby

How 509 Monmouth St ranks against every home in each area.
MeasureThis homeTrenton StationTrenton 08609Mercer County
Estimated valuepricier than$158,28447% of homes25% of homes6% of homes
Price per ft²pricier than$697% of homesalmost no homesalmost no homes
Living areabigger than2,288 ft²82% of homes91% of homes78% of homes
Lot sizebigger than2,509 ft²76% of homes70% of homes27% of homes
Year builtnewer than190030% of homes35% of homes10% of homes

About 509 Monmouth St

How much is 509 Monmouth St, Trenton, NJ worth?

The TopHap Estimate for 509 Monmouth St, Trenton, NJ is $158,284 as of Sep 24, 2026. The likely range is $135,312 to $181,256. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Monmouth St, Trenton, NJ last sell?

509 Monmouth St, Trenton, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 Monmouth St, Trenton, NJ?

509 Monmouth St, Trenton, NJ has 2,288 square feet of living space and a 0.06-acre lot.

When was 509 Monmouth St, Trenton, NJ built?

509 Monmouth St, Trenton, NJ was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 509 Monmouth St, Trenton, NJ?

509 Monmouth St, Trenton, NJ is assigned to Trenton Central High School (high), rated F; Patton J. Hill Elementary School (elementary), rated F; Dr. Martin Luther King, Jr. Middle School (middle). All sit in Trenton City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Monmouth St, Trenton, NJ compare to other homes in Trenton 08609?

Among the 2,984 homes in Trenton 08609, it is worth more than 25% of them ($158,284 against a typical $194,236), its price per square foot is higher than almost none of them ($69 against a typical $137), it is bigger than 91% of them (2,288 ft² against a typical 1,368 ft²), its lot is bigger than 70% of them (2,509 ft² against a typical 2,091 ft²) and it is newer than 35% of them (1900 against a typical 1915). Measured against all of Mercer County, it is worth more than 6% 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 509 Monmouth St, Trenton, NJ?

The 2025 property tax bill for 509 Monmouth St, Trenton, NJ was $3,581. The county assessed it at $60,800.

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