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Single Family ResidenceResidential
$723,985$404 / 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 $355,500 on Dec 9, 2011

91 MOUNTAINSIDE DR

RANDOLPH, NJ 07869
0
Baths
1,790 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.
5.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.

Valuation

$724K
$698K low$750K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$355,500 · Dec 9, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,156 (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.$429,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$189,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$239,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$429,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$429,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMORRIS
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Randolph Middle SchoolB+
Middle · Grades 6–8 · 1.5 mi
H
Randolph High SchoolB
High · Grades 9–12 · 1.6 mi
E
Center Grove SchoolA+
Elementary · Grades PK–5 · 1.9 mi

District: Randolph Township School District

Neighborhood · ZIP 07869These 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.57
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.101

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.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.26,744
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,309 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$169,203
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$187,859
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.53 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

91 Mountainside Dr 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 65% of homes in Randolph 07869
  • Costs more per square foot than 86% of homes in Randolph 07869
  • Smaller than 78% of homes in Randolph 07869
  • Among the largest lots in Randolph 07869
  • Older than 78% of homes in Randolph 07869

What homes are worth in Randolph 07869

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

This home
$389K$1.4M

This home is worth more than 35% of homes in Randolph 07869.

How it measures up in Randolph 07869

The dot is this home. The mark in the middle is the typical home in Randolph 07869.

Estimated value$723,985
CheaperTypical $824,484Pricier

Pricier than 35% of homes nearby

Price per ft²$404
CheaperTypical $344Pricier

Pricier than 86% of homes nearby

Living area1,790 ft²
SmallerTypical 2,408 ft²Bigger

Bigger than 22% of homes nearby

Lot size5.17 ac
SmallerTypical 0.58 acBigger

Bigger than almost all homes nearby

Year built1958
OlderTypical 1976Newer

Newer than 22% of homes nearby

How 91 Mountainside Dr ranks against every home in each area.
MeasureThis homeRandolph 07869Morris County
Estimated valuepricier than$723,98535% of homes50% of homes
Price per ft²pricier than$40486% of homes67% of homes
Living areabigger than1,790 ft²22% of homes40% of homes
Lot sizebigger than5.17 acalmost all homes98% of homes
Year builtnewer than195822% of homes36% of homes

About 91 Mountainside Dr

How much is 91 Mountainside Dr, Randolph, NJ worth?

The TopHap Estimate for 91 Mountainside Dr, Randolph, NJ is $723,985 as of Aug 30, 2026. The likely range is $698,250 to $749,720. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 91 Mountainside Dr, Randolph, NJ last sell?

91 Mountainside Dr, Randolph, NJ last sold on Dec 9, 2011 for $355,500, according to the county's recorded deed.

When was 91 Mountainside Dr, Randolph, NJ built?

91 Mountainside Dr, Randolph, NJ was built in 1958, making it 68 years old.

What schools serve 91 Mountainside Dr, Randolph, NJ?

91 Mountainside Dr, Randolph, NJ is assigned to Randolph Middle School (middle), rated B+; Randolph High School (high), rated B; Center Grove School (elementary), rated A+. All sit in Randolph Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 91 Mountainside Dr, Randolph, NJ compare to other homes in Randolph 07869?

Among the 7,374 homes in Randolph 07869, it is worth more than 35% of them ($723,985 against a typical $824,484), its price per square foot is higher than 86% of them ($404 against a typical $344), it is bigger than 22% of them (1,790 ft² against a typical 2,408 ft²), its lot is bigger than almost all of them (5.17 ac against a typical 0.58 ac) and it is newer than 22% of them (1958 against a typical 1976). Measured against all of Morris County, it is worth more than 50% 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 91 Mountainside Dr, Randolph, NJ?

The 2024 property tax bill for 91 Mountainside Dr, Randolph, NJ was $12,156. The county assessed it at $429,400.

More homes on Mountainside Dr

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More homes in Randolph 07869

Assigned schools

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