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Single Family ResidenceResidential
$727,569$266 / 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 Sep 24, 2026
Last sold for $155,000 on Dec 29, 1998

421 WALNUT ST

PORT MONMOUTH, NJ 07758
4
Beds
3
Baths
2,740 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1919
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$728K
$704K low$751K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$155,000 · Dec 29, 1998

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,074 (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.$749,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$332,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$417,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$686,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$749,300

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.Ranch
CountyMONMOUTH
Lot (acres)The size of the land the home sits on, from county records.0.14
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 120 ft²Patio · 75 ft²

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.

E
Port Monmouth Elementary School
Elementary · Grades KG–5 · 0.1 mi
M
Thorne Middle SchoolC+
Middle · Grades 6–8 · 0.7 mi
H
Middletown High School NorthC
High · Grades 9–12 · 1.7 mi

District: Middletown Township School District

Neighborhood · ZIP 07758These 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.41
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.4,364
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,778 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,227
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,074
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

421 Walnut 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 74% of homes in Port Monmouth 07758
  • Costs less per square foot than 96% of homes in Monmouth County
  • Bigger than 94% of homes in Port Monmouth 07758
  • Has a smaller lot than 71% of homes in Monmouth County
  • Older than 93% of homes in Monmouth County

What homes are worth in Port Monmouth 07758

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

This home
$358K$979K

This home is worth more than 74% of homes in Port Monmouth 07758.

How it measures up in Port Monmouth 07758

The dot is this home. The mark in the middle is the typical home in Port Monmouth 07758.

Estimated value$727,569
CheaperTypical $600,816Pricier

Pricier than 74% of homes nearby

Price per ft²$266
CheaperTypical $358Pricier

Pricier than 6% of homes nearby

Living area2,740 ft²
SmallerTypical 1,770 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.14 ac
SmallerTypical 0.17 acBigger

Bigger than 31% of homes nearby

Year built1919
OlderTypical 1963Newer

Newer than 8% of homes nearby

How 421 Walnut St ranks against every home in each area.
MeasureThis homePort Monmouth 07758Monmouth County
Estimated valuepricier than$727,56974% of homes45% of homes
Price per ft²pricier than$2666% of homes4% of homes
Living areabigger than2,740 ft²94% of homes79% of homes
Lot sizebigger than0.14 ac31% of homes29% of homes
Year builtnewer than19198% of homes7% of homes

About 421 Walnut St

How much is 421 Walnut St, Port Monmouth, NJ worth?

The TopHap Estimate for 421 Walnut St, Port Monmouth, NJ is $727,569 as of Sep 24, 2026. The likely range is $704,237 to $750,901. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Walnut St, Port Monmouth, NJ last sell?

421 Walnut St, Port Monmouth, NJ last sold on Dec 29, 1998 for $155,000, according to the county's recorded deed.

How big is 421 Walnut St, Port Monmouth, NJ?

421 Walnut St, Port Monmouth, NJ has 4 bedrooms, 3 bathrooms, 2,740 square feet of living space and a 0.14-acre lot.

When was 421 Walnut St, Port Monmouth, NJ built?

421 Walnut St, Port Monmouth, NJ was built in 1919, making it 107 years old. It is a ranch home. The building has 1 story.

What schools serve 421 Walnut St, Port Monmouth, NJ?

421 Walnut St, Port Monmouth, NJ is assigned to Port Monmouth Elementary School (elementary); Thorne Middle School (middle), rated C+; Middletown High School North (high), rated C. All sit in Middletown Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Walnut St, Port Monmouth, NJ compare to other homes in Port Monmouth 07758?

Among the 1,660 homes in Port Monmouth 07758, it is worth more than 74% of them ($727,569 against a typical $600,816), its price per square foot is higher than 6% of them ($266 against a typical $358), it is bigger than 94% of them (2,740 ft² against a typical 1,770 ft²), its lot is bigger than 31% of them (0.14 ac against a typical 0.17 ac) and it is newer than 8% of them (1919 against a typical 1963). Measured against all of Monmouth County, it is worth more than 45% 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 421 Walnut St, Port Monmouth, NJ?

The 2025 property tax bill for 421 Walnut St, Port Monmouth, NJ was $11,074. The county assessed it at $749,300.

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