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Single Family ResidenceResidential
$499,101$273 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $218,000 on Sep 15, 1999

31 RARITAN RIVER RD

CALIFON, NJ 07830
0
Baths
1,825 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.
0.72 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$499K
$473K low$526K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$218,000 · Sep 15, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,580 (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.$322,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$134,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$188,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$322,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$322,800

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.120 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
CountyHUNTERDON
Lot (acres)The size of the land the home sits on, from county records.0.72
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
Califon Elementary SchoolC+
Elementary · Grades PK–8 · 0.5 mi
H
Voorhees High SchoolB
High · Grades 9–12 · 2.7 mi

District: Califon Borough School District

Neighborhood · ZIP 07830These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.88

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.95%
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.1.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.6,640
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.248 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$160,173
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$193,781
Average tempThe average temperature here across a full year.50°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

31 Raritan River Rd 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 81% of homes in Califon 07830
  • Costs less per square foot than 70% of homes in Califon 07830
  • Smaller than 70% of homes in Califon 07830
  • Has a smaller lot than 78% of homes in Califon 07830
  • Older than 90% of homes in Hunterdon County

What homes are worth in Califon 07830

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

This home
$332K$1.6M

This home is worth more than 19% of homes in Califon 07830.

How it measures up in Califon 07830

The dot is this home. The mark in the middle is the typical home in Califon 07830.

Estimated value$499,101
CheaperTypical $696,101Pricier

Pricier than 19% of homes nearby

Price per ft²$273
CheaperTypical $301Pricier

Pricier than 30% of homes nearby

Living area1,825 ft²
SmallerTypical 2,408 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.72 ac
SmallerTypical 2.01 acBigger

Bigger than 22% of homes nearby

Year built1890
OlderTypical 1973Newer

Newer than 11% of homes nearby

How 31 Raritan River Rd ranks against every home in each area.
MeasureThis homeCalifon 07830Hunterdon County
Estimated valuepricier than$499,10119% of homes31% of homes
Price per ft²pricier than$27330% of homes36% of homes
Living areabigger than1,825 ft²30% of homes40% of homes
Lot sizebigger than0.72 ac22% of homes40% of homes
Year builtnewer than189011% of homes10% of homes

About 31 Raritan River Rd

How much is 31 Raritan River Rd, Califon, NJ worth?

The TopHap Estimate for 31 Raritan River Rd, Califon, NJ is $499,101 as of Jul 14, 2026. The likely range is $472,562 to $525,640. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Raritan River Rd, Califon, NJ last sell?

31 Raritan River Rd, Califon, NJ last sold on Sep 15, 1999 for $218,000, according to the county's recorded deed.

How big is 31 Raritan River Rd, Califon, NJ?

31 Raritan River Rd, Califon, NJ has 1,825 square feet of living space and a 0.72-acre lot.

When was 31 Raritan River Rd, Califon, NJ built?

31 Raritan River Rd, Califon, NJ was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 31 Raritan River Rd, Califon, NJ?

31 Raritan River Rd, Califon, NJ is assigned to Califon Elementary School (elementary), rated C+; Voorhees High School (high), rated B. All sit in Califon Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Raritan River Rd, Califon, NJ compare to other homes in Califon 07830?

Among the 2,158 homes in Califon 07830, it is worth more than 19% of them ($499,101 against a typical $696,101), its price per square foot is higher than 30% of them ($273 against a typical $301), it is bigger than 30% of them (1,825 ft² against a typical 2,408 ft²), its lot is bigger than 22% of them (0.72 ac against a typical 2.01 ac) and it is newer than 11% of them (1890 against a typical 1973). Measured against all of Hunterdon County, it is worth more than 31% 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 31 Raritan River Rd, Califon, NJ?

The 2025 property tax bill for 31 Raritan River Rd, Califon, NJ was $12,580. The county assessed it at $322,800.

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