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Residential (General/Single)Residential
Last sold for $699,000 on Apr 22, 2022

512 21ST ST

UNION CITY, NJ 07087
0
Baths
2,676 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.
1893
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$699,000 · Apr 22, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,903 (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.$718,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$274,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$444,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$698,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$718,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.31
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
70
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
16
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyHUDSON
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.Frame (Unspecified)
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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(6)

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

M
Emerson Middle SchoolB
Middle · Grades 6–8 · 0.2 mi
H
Union City High SchoolC-
High · Grades 9–12 · 0.3 mi
E
Sara M. Gilmore AcademyA
Elementary · Grades 1–8 · 0.4 mi

District: Union City School District

Neighborhood · ZIP 07087These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.118
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.111

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.23%
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.68,460
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.53,613 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$51,681
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,242
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

512 21st 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.

  • Bigger than 87% of homes in Hudson County
  • Has a bigger lot than 79% of homes in Union City 07087
  • Older than 93% of homes in Hudson County

How it measures up in Union City 07087

The dot is this home. The mark in the middle is the typical home in Union City 07087.

Living area2,676 ft²
SmallerTypical 1,558 ft²Bigger

Bigger than 86% of homes nearby

Lot size2,500 ft²
SmallerTypical 2,134 ft²Bigger

Bigger than 79% of homes nearby

Year built1893
OlderTypical 1917Newer

Newer than 9% of homes nearby

How 512 21st St ranks against every home in each area.
MeasureThis homeUnion City 07087Hudson County
Living areabigger than2,676 ft²86% of homes87% of homes
Lot sizebigger than2,500 ft²79% of homes53% of homes
Year builtnewer than18939% of homes7% of homes

About 512 21st St

When did 512 21st St, Union City, NJ last sell?

512 21st St, Union City, NJ last sold on Apr 22, 2022 for $699,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 512 21st St, Union City, NJ?

512 21st St, Union City, NJ has 2,676 square feet of living space and a 0.06-acre lot.

When was 512 21st St, Union City, NJ built?

512 21st St, Union City, NJ was built in 1893, making it 133 years old. The building has 2 stories.

What schools serve 512 21st St, Union City, NJ?

512 21st St, Union City, NJ is assigned to Emerson Middle School (middle), rated B; Union City High School (high), rated C-; Sara M. Gilmore Academy (elementary), rated A. All sit in Union City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 512 21st St, Union City, NJ compare to other homes in Union City 07087?

Among the 7,767 homes in Union City 07087, it is bigger than 86% of them (2,676 ft² against a typical 1,558 ft²), its lot is bigger than 79% of them (2,500 ft² against a typical 2,134 ft²) and it is newer than 9% of them (1893 against a typical 1917). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 512 21st St, Union City, NJ?

The 2025 property tax bill for 512 21st St, Union City, NJ was $12,903. The county assessed it at $718,800.

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