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Single Family ResidenceResidential
$747,010$432 / 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 Aug 30, 2026
Last sold for $710,000 on Jun 4, 2025

18 MARY ST

MONMOUTH JUNCTION, NJ 08852
0
Baths
1,728 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.
3.07 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$747K
$718K low$776K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$710,000 · Jun 4, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,258 (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.$243,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$110,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$133,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$235,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$243,700

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.96 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMIDDLESEX
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(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(1)

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

E
Monmouth Junction Elementary SchoolA
Elementary · Grades KG–5 · 0.3 mi
H
South Brunswick High SchoolB+
High · Grades 9–12 · 1.1 mi
M
Crossroads North Middle SchoolA
Middle · Grades 6–8 · 1.3 mi

District: South Brunswick Township School District

Neighborhood · ZIP 08852These 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.88
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 100.89

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.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.18,372
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,416 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$128,084
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$158,373
Average tempThe average temperature here across a full year.52°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

18 Mary 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 93% of homes in Village of Monmouth Junction
  • Costs more per square foot than 95% of homes in Monmouth Junction 08852
  • Among the largest lots in Village of Monmouth Junction
  • Newer than 98% of homes in Village of Monmouth Junction

What homes are worth in Monmouth Junction 08852

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

This home
$288K$1.6M

This home is worth more than 58% of homes in Monmouth Junction 08852.

How it measures up in Monmouth Junction 08852

The dot is this home. The mark in the middle is the typical home in Monmouth Junction 08852.

Estimated value$747,010
CheaperTypical $663,869Pricier

Pricier than 58% of homes nearby

Price per ft²$432
CheaperTypical $341Pricier

Pricier than 95% of homes nearby

Living area1,728 ft²
SmallerTypical 2,010 ft²Bigger

Bigger than 39% of homes nearby

Lot size3.07 ac
SmallerTypical 0.17 acBigger

Bigger than 98% of homes nearby

Year built2000
OlderTypical 1992Newer

Newer than 74% of homes nearby

How 18 Mary St ranks against every home in each area.
MeasureThis homeVillage of Monmouth JunctionMonmouth Junction 08852Middlesex County
Estimated valuepricier than$747,01093% of homes58% of homes77% of homes
Price per ft²pricier than$43291% of homes95% of homes82% of homes
Living areabigger than1,728 ft²57% of homes39% of homes57% of homes
Lot sizebigger than3.07 acalmost all homes98% of homesalmost all homes
Year builtnewer than200098% of homes74% of homes87% of homes

About 18 Mary St

How much is 18 Mary St, Monmouth Junction, NJ worth?

The TopHap Estimate for 18 Mary St, Monmouth Junction, NJ is $747,010 as of Aug 30, 2026. The likely range is $718,351 to $775,669. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Mary St, Monmouth Junction, NJ last sell?

18 Mary St, Monmouth Junction, NJ last sold on Jun 4, 2025 for $710,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

When was 18 Mary St, Monmouth Junction, NJ built?

18 Mary St, Monmouth Junction, NJ was built in 2000, making it 26 years old. The building has 2 stories.

What schools serve 18 Mary St, Monmouth Junction, NJ?

18 Mary St, Monmouth Junction, NJ is assigned to Monmouth Junction Elementary School (elementary), rated A; South Brunswick High School (high), rated B+; Crossroads North Middle School (middle), rated A. All sit in South Brunswick Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Mary St, Monmouth Junction, NJ compare to other homes in Monmouth Junction 08852?

Among the 4,702 homes in Monmouth Junction 08852, it is worth more than 58% of them ($747,010 against a typical $663,869), its price per square foot is higher than 95% of them ($432 against a typical $341), it is bigger than 39% of them (1,728 ft² against a typical 2,010 ft²), its lot is bigger than 98% of them (3.07 ac against a typical 0.17 ac) and it is newer than 74% of them (2000 against a typical 1992). Measured against all of Middlesex County, it is worth more than 77% 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 18 Mary St, Monmouth Junction, NJ?

The 2025 property tax bill for 18 Mary St, Monmouth Junction, NJ was $13,258. The county assessed it at $243,700.

More homes on Mary St

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