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Single Family ResidenceResidential
$886,708$361 / 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 93How 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 $280,000 on Jun 29, 2000

18 MARIPOSA PL

OLD BRIDGE, NJ 08857
0
Baths
2,457 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1984
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$887K
$828K low$946K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$280,000 · Jun 29, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,762 (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.$221,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$70,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$151,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$221,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$221,500

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.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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
Lot (acres)The size of the land the home sits on, from county records.0.28
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(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.

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

M
Jonas Salk Middle SchoolB+
Middle · Grades 6–8 · 2.6 mi
H
Old Bridge High SchoolC
High · Grades 9–12 · 2.9 mi

District: Old Bridge Township School District

Neighborhood · ZIP 08857These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.95

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.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.41,430
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,677 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,064
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,231
Average tempThe average temperature here across a full year.53°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

18 Mariposa Pl 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 91% of homes in Old Bridge 08857
  • Bigger than 85% of homes in Old Bridge 08857
  • Has a bigger lot than 79% of homes in Middlesex County
  • Newer than 67% of homes in Middlesex County

What homes are worth in Old Bridge 08857

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

This home
$347K$1.2M

This home is worth more than 91% of homes in Old Bridge 08857.

How it measures up in Old Bridge 08857

The dot is this home. The mark in the middle is the typical home in Old Bridge 08857.

Estimated value$886,708
CheaperTypical $629,949Pricier

Pricier than 91% of homes nearby

Price per ft²$361
CheaperTypical $367Pricier

Pricier than 44% of homes nearby

Living area2,457 ft²
SmallerTypical 1,700 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.28 ac
SmallerTypical 0.17 acBigger

Bigger than 74% of homes nearby

Year built1984
OlderTypical 1979Newer

Newer than 65% of homes nearby

How 18 Mariposa Pl ranks against every home in each area.
MeasureThis homeOld Bridge 08857Middlesex County
Estimated valuepricier than$886,70891% of homes88% of homes
Price per ft²pricier than$36144% of homes51% of homes
Living areabigger than2,457 ft²85% of homes84% of homes
Lot sizebigger than0.28 ac74% of homes79% of homes
Year builtnewer than198465% of homes67% of homes

About 18 Mariposa Pl

How much is 18 Mariposa Pl, Old Bridge, NJ worth?

The TopHap Estimate for 18 Mariposa Pl, Old Bridge, NJ is $886,708 as of Sep 24, 2026. The likely range is $827,876 to $945,540. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Mariposa Pl, Old Bridge, NJ last sell?

18 Mariposa Pl, Old Bridge, NJ last sold on Jun 29, 2000 for $280,000, according to the county's recorded deed.

How big is 18 Mariposa Pl, Old Bridge, NJ?

18 Mariposa Pl, Old Bridge, NJ has 2,457 square feet of living space and a 0.28-acre lot.

When was 18 Mariposa Pl, Old Bridge, NJ built?

18 Mariposa Pl, Old Bridge, NJ was built in 1984, making it 42 years old. The building has 2 stories.

What schools serve 18 Mariposa Pl, Old Bridge, NJ?

18 Mariposa Pl, Old Bridge, NJ is assigned to Jonas Salk Middle School (middle), rated B+; Old Bridge High School (high), rated C. All sit in Old Bridge Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Mariposa Pl, Old Bridge, NJ compare to other homes in Old Bridge 08857?

Among the 11,563 homes in Old Bridge 08857, it is worth more than 91% of them ($886,708 against a typical $629,949), its price per square foot is higher than 44% of them ($361 against a typical $367), it is bigger than 85% of them (2,457 ft² against a typical 1,700 ft²), its lot is bigger than 74% of them (0.28 ac against a typical 0.17 ac) and it is newer than 65% of them (1984 against a typical 1979). Measured against all of Middlesex County, it is worth more than 88% 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 Mariposa Pl, Old Bridge, NJ?

The 2025 property tax bill for 18 Mariposa Pl, Old Bridge, NJ was $13,762. The county assessed it at $221,500.

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