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Single Family ResidenceResidential
$574,365$215 / 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 94How 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 $305,000 on Dec 22, 2014

140 E PROSPECT ST

HACKETTSTOWN, NJ 07840
0
Baths
2,667 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$574K
$541K low$608K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$305,000 · Dec 22, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,135 (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.$349,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$120,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$349,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$349,000

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.20
57
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
30
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.21 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
CountyWARREN
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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
Hackettstown Middle SchoolC+
Middle · Grades 5–8 · 0.6 mi
E
Hatchery Hill Elementary SchoolB-
Elementary · Grades KG–1 · 1.0 mi
H
Hackettstown High SchoolC
High · Grades 9–12 · 1.0 mi

District: Hackettstown Town School District

Neighborhood · ZIP 07840These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
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.30,612
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.849 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,139
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,293
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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

140 E Prospect 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 80% of homes in Warren County
  • Costs less per square foot than 91% of homes in Hackettstown 07840
  • Bigger than 87% of homes in Warren County
  • Older than 87% of homes in Hackettstown 07840

What homes are worth in Hackettstown 07840

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

This home
$257K$912K

This home is worth more than 68% of homes in Hackettstown 07840.

How it measures up in Hackettstown 07840

The dot is this home. The mark in the middle is the typical home in Hackettstown 07840.

Estimated value$574,365
CheaperTypical $492,860Pricier

Pricier than 68% of homes nearby

Price per ft²$215
CheaperTypical $279Pricier

Pricier than 9% of homes nearby

Living area2,667 ft²
SmallerTypical 1,768 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.26 ac
SmallerTypical 0.26 acBigger

Bigger than 51% of homes nearby

Year built1950
OlderTypical 1983Newer

Newer than 13% of homes nearby

How 140 E Prospect St ranks against every home in each area.
MeasureThis homeHackettstown 07840Warren County
Estimated valuepricier than$574,36568% of homes80% of homes
Price per ft²pricier than$2159% of homes27% of homes
Living areabigger than2,667 ft²86% of homes87% of homes
Lot sizebigger than0.26 ac51% of homes44% of homes
Year builtnewer than195013% of homes33% of homes

About 140 E Prospect St

How much is 140 E Prospect St, Hackettstown, NJ worth?

The TopHap Estimate for 140 E Prospect St, Hackettstown, NJ is $574,365 as of Sep 24, 2026. The likely range is $540,927 to $607,803. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 140 E Prospect St, Hackettstown, NJ last sell?

140 E Prospect St, Hackettstown, NJ last sold on Dec 22, 2014 for $305,000, according to the county's recorded deed.

How big is 140 E Prospect St, Hackettstown, NJ?

140 E Prospect St, Hackettstown, NJ has 2,667 square feet of living space and a 0.26-acre lot.

When was 140 E Prospect St, Hackettstown, NJ built?

140 E Prospect St, Hackettstown, NJ was built in 1950, making it 76 years old. The building has 2 stories.

What schools serve 140 E Prospect St, Hackettstown, NJ?

140 E Prospect St, Hackettstown, NJ is assigned to Hackettstown Middle School (middle), rated C+; Hatchery Hill Elementary School (elementary), rated B-; Hackettstown High School (high), rated C. All sit in Hackettstown Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 140 E Prospect St, Hackettstown, NJ compare to other homes in Hackettstown 07840?

Among the 9,122 homes in Hackettstown 07840, it is worth more than 68% of them ($574,365 against a typical $492,860), its price per square foot is higher than 9% of them ($215 against a typical $279), it is bigger than 86% of them (2,667 ft² against a typical 1,768 ft²), its lot is bigger than 51% of them (0.26 ac against a typical 0.26 ac) and it is newer than 13% of them (1950 against a typical 1983). Measured against all of Warren County, it is worth more than 80% 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 140 E Prospect St, Hackettstown, NJ?

The 2025 property tax bill for 140 E Prospect St, Hackettstown, NJ was $12,135. The county assessed it at $349,000.

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