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Single Family ResidenceResidential
$447,713$330 / 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 91How 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 $204,000 on Dec 19, 2002

21 ALLEN ST

NETCONG, NJ 07857
0
Baths
1,358 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$448K
$408K low$487K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$204,000 · Dec 19, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,268 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$212,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$91,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$120,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$212,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$212,700

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.50
53
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. 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.17 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
CountyMORRIS
Lot (acres)The size of the land the home sits on, from county records.0.17
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

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

E
Netcong Elementary SchoolC
Elementary · Grades PK–8 · 0.2 mi
H
Lenape Valley Regional High SchoolC
High · Grades 9–12 · 1.4 mi

District: Netcong Borough School District

Neighborhood · ZIP 07857These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.97

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.3%
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.3,509
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,755 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,757
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$140,155
Average tempThe average temperature here across a full year.47°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

21 Allen 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 90% of homes in Morris County
  • Costs less per square foot than 68% of homes in Morris County
  • Smaller than 80% of homes in Morris County
  • Has a smaller lot than 74% of homes in Morris County
  • Older than 92% of homes in Morris County

What homes are worth in Netcong 07857

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

This home
$305K$673K

This home is worth more than 26% of homes in Netcong 07857.

How it measures up in Netcong 07857

The dot is this home. The mark in the middle is the typical home in Netcong 07857.

Estimated value$447,713
CheaperTypical $493,197Pricier

Pricier than 26% of homes nearby

Price per ft²$330
CheaperTypical $323Pricier

Pricier than 54% of homes nearby

Living area1,358 ft²
SmallerTypical 1,481 ft²Bigger

Bigger than 39% of homes nearby

Lot size0.17 ac
SmallerTypical 0.17 acBigger

Bigger than 51% of homes nearby

Year built1920
OlderTypical 1945Newer

Newer than 31% of homes nearby

How 21 Allen St ranks against every home in each area.
MeasureThis homeNetcong 07857Morris County
Estimated valuepricier than$447,71326% of homes10% of homes
Price per ft²pricier than$33054% of homes32% of homes
Living areabigger than1,358 ft²39% of homes20% of homes
Lot sizebigger than0.17 ac51% of homes26% of homes
Year builtnewer than192031% of homes8% of homes

About 21 Allen St

How much is 21 Allen St, Netcong, NJ worth?

The TopHap Estimate for 21 Allen St, Netcong, NJ is $447,713 as of Sep 24, 2026. The likely range is $407,957 to $487,469. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Allen St, Netcong, NJ last sell?

21 Allen St, Netcong, NJ last sold on Dec 19, 2002 for $204,000, according to the county's recorded deed.

How big is 21 Allen St, Netcong, NJ?

21 Allen St, Netcong, NJ has 1,358 square feet of living space and a 0.17-acre lot.

When was 21 Allen St, Netcong, NJ built?

21 Allen St, Netcong, NJ was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 21 Allen St, Netcong, NJ?

21 Allen St, Netcong, NJ is assigned to Netcong Elementary School (elementary), rated C; Lenape Valley Regional High School (high), rated C. All sit in Netcong Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Allen St, Netcong, NJ compare to other homes in Netcong 07857?

Among the 837 homes in Netcong 07857, it is worth more than 26% of them ($447,713 against a typical $493,197), its price per square foot is higher than 54% of them ($330 against a typical $323), it is bigger than 39% of them (1,358 ft² against a typical 1,481 ft²), its lot is bigger than 51% of them (0.17 ac against a typical 0.17 ac) and it is newer than 31% of them (1920 against a typical 1945). Measured against all of Morris County, it is worth more than 10% 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 21 Allen St, Netcong, NJ?

The 2024 property tax bill for 21 Allen St, Netcong, NJ was $7,268. The county assessed it at $212,700.

More homes on Allen St

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Assigned schools

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