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Single Family ResidenceResidential
$499,000$433 / 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 97How 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 $385,000 on May 16, 2022

398 RIVERDALE DR

KEYPORT, NJ 07735
3
Beds
2
Baths
1,152 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$499K
$483K low$515K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$385,000 · May 16, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,287 (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.$511,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$328,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$182,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$469,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$511,500

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.36
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
36
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
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.132 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.80%
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
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyMONMOUTH
Lot (acres)The size of the land the home sits on, from county records.0.34
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 310 ft²Shed · 42 ft²Patio · 150 ft²

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

M
Matawan-Aberdeen Middle SchoolB+
Middle · Grades 6–8 · 0.6 mi
E
Cliffwood Elementary SchoolC
Elementary · Grades PK–3 · 0.6 mi
H
Matawan Regional High SchoolD
High · Grades 9–12 · 1.6 mi

District: Matawan-Aberdeen Regional School District

Neighborhood · ZIP 07735These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.96

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.18,642
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,536 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,668
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,431
Average tempThe average temperature here across a full year.54°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

398 Riverdale 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 83% of homes in Monmouth County
  • Costs more per square foot than 84% of homes in Keyport 07735
  • Smaller than 85% of homes in Monmouth County
  • Has a bigger lot than 96% of homes in Keyport 07735
  • Newer than 85% of homes in River Gardens

What homes are worth in Keyport 07735

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

This home
$301K$803K

This home is worth more than 48% of homes in Keyport 07735.

How it measures up in Keyport 07735

The dot is this home. The mark in the middle is the typical home in Keyport 07735.

Estimated value$499,000
CheaperTypical $503,923Pricier

Pricier than 48% of homes nearby

Price per ft²$433
CheaperTypical $358Pricier

Pricier than 84% of homes nearby

Living area1,152 ft²
SmallerTypical 1,410 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.34 ac
SmallerTypical 0.14 acBigger

Bigger than 96% of homes nearby

Year built1952
OlderTypical 1954Newer

Newer than 49% of homes nearby

How 398 Riverdale Dr ranks against every home in each area.
MeasureThis homeRiver GardensKeyport 07735Monmouth County
Estimated valuepricier than$499,00056% of homes48% of homes17% of homes
Price per ft²pricier than$43379% of homes84% of homes65% of homes
Living areabigger than1,152 ft²43% of homes31% of homes15% of homes
Lot sizebigger than0.34 ac79% of homes96% of homes61% of homes
Year builtnewer than195285% of homes49% of homes23% of homes

About 398 Riverdale Dr

How much is 398 Riverdale Dr, Keyport, NJ worth?

The TopHap Estimate for 398 Riverdale Dr, Keyport, NJ is $499,000 as of Aug 30, 2026. The likely range is $483,410 to $514,590. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 398 Riverdale Dr, Keyport, NJ last sell?

398 Riverdale Dr, Keyport, NJ last sold on May 16, 2022 for $385,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 398 Riverdale Dr, Keyport, NJ?

398 Riverdale Dr, Keyport, NJ has 3 bedrooms, 2 bathrooms, 1,152 square feet of living space and a 0.34-acre lot.

When was 398 Riverdale Dr, Keyport, NJ built?

398 Riverdale Dr, Keyport, NJ was built in 1952, making it 74 years old. It is a cape cod home. The building has 1 story.

What schools serve 398 Riverdale Dr, Keyport, NJ?

398 Riverdale Dr, Keyport, NJ is assigned to Matawan-Aberdeen Middle School (middle), rated B+; Cliffwood Elementary School (elementary), rated C; Matawan Regional High School (high), rated D. All sit in Matawan-Aberdeen Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 398 Riverdale Dr, Keyport, NJ compare to other homes in Keyport 07735?

Among the 6,337 homes in Keyport 07735, it is worth more than 48% of them ($499,000 against a typical $503,923), its price per square foot is higher than 84% of them ($433 against a typical $358), it is bigger than 31% of them (1,152 ft² against a typical 1,410 ft²), its lot is bigger than 96% of them (0.34 ac against a typical 0.14 ac) and it is newer than 49% of them (1952 against a typical 1954). Measured against all of Monmouth County, it is worth more than 17% 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 398 Riverdale Dr, Keyport, NJ?

The 2025 property tax bill for 398 Riverdale Dr, Keyport, NJ was $9,287. The county assessed it at $511,500.

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