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Single Family ResidenceResidential
$901,922$390 / 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 Jul 14, 2026
Last sold for $870,000 on Oct 17, 2025

643 S RIVER ST

MARSHFIELD, MA 02050
3
Beds
2
Baths
2,315 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.
0.76 ac
Lot SizeThe size of the land the home sits on, from county records.
1800
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$902K
$816K low$988K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$870,000 · Oct 17, 2025
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$286,922
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$229,538
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.68%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$615,000
CMG MORTGAGE INC · recorded Oct 17, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,635 (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.$670,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$312,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$357,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$833,150

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.Historical
CountyPLYMOUTH
Lot (acres)The size of the land the home sits on, from county records.0.76
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(14)

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
South River Elementary SchoolB+
Elementary · Grades KG–5 · 1.3 mi
M
Furnace Brook Middle SchoolB-
Middle · Grades 6–8 · 2.0 mi
H
Marshfield High SchoolA-
High · Grades 9–12 · 2.2 mi

District: Marshfield School District

Neighborhood · ZIP 02050These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.25,891
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.764 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$123,164
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,061
Average tempThe average temperature here across a full year.50°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.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

643 S River 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 80% of homes in Plymouth County
  • Costs less per square foot than 80% of homes in Marshfield 02050
  • Bigger than 75% of homes in Marshfield 02050
  • Has a bigger lot than 68% of homes in Marshfield 02050
  • Among the oldest homes in Marshfield 02050

What homes are worth in Marshfield 02050

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

This home
$285K$1.8M

This home is worth more than 66% of homes in Marshfield 02050.

How it measures up in Marshfield 02050

The dot is this home. The mark in the middle is the typical home in Marshfield 02050.

Estimated value$901,922
CheaperTypical $798,086Pricier

Pricier than 66% of homes nearby

Price per ft²$390
CheaperTypical $470Pricier

Pricier than 20% of homes nearby

Living area2,315 ft²
SmallerTypical 1,704 ft²Bigger

Bigger than 75% of homes nearby

Lot size0.76 ac
SmallerTypical 0.46 acBigger

Bigger than 68% of homes nearby

Year built1800
OlderTypical 1968Newer

Older than almost all homes nearby

How 643 S River St ranks against every home in each area.
MeasureThis homeMarshfield 02050Plymouth County
Estimated valuepricier than$901,92266% of homes80% of homes
Price per ft²pricier than$39020% of homes51% of homes
Living areabigger than2,315 ft²75% of homes75% of homes
Lot sizebigger than0.76 ac68% of homes66% of homes
Year builtnewer than1800almost no homesalmost no homes

About 643 S River St

How much is 643 S River St, Marshfield, MA worth?

The TopHap Estimate for 643 S River St, Marshfield, MA is $901,922 as of Jul 14, 2026. The likely range is $816,283 to $987,561. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 S River St, Marshfield, MA last sell?

643 S River St, Marshfield, MA last sold on Oct 17, 2025 for $870,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 643 S River St, Marshfield, MA?

643 S River St, Marshfield, MA has 3 bedrooms, 2 bathrooms, 2,315 square feet of living space and a 0.76-acre lot.

When was 643 S River St, Marshfield, MA built?

643 S River St, Marshfield, MA was built in 1800, making it 226 years old. It is a historical home. The building has 2 stories.

What schools serve 643 S River St, Marshfield, MA?

643 S River St, Marshfield, MA is assigned to South River Elementary School (elementary), rated B+; Furnace Brook Middle School (middle), rated B-; Marshfield High School (high), rated A-. All sit in Marshfield School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 S River St, Marshfield, MA compare to other homes in Marshfield 02050?

Among the 10,105 homes in Marshfield 02050, it is worth more than 66% of them ($901,922 against a typical $798,086), its price per square foot is higher than 20% of them ($390 against a typical $470), it is bigger than 75% of them (2,315 ft² against a typical 1,704 ft²), its lot is bigger than 68% of them (0.76 ac against a typical 0.46 ac) and it is newer than almost none of them (1800 against a typical 1968). Measured against all of Plymouth County, it is worth more than 80% 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 643 S River St, Marshfield, MA?

The 2025 property tax bill for 643 S River St, Marshfield, MA was $6,635. The county assessed it at $670,200.

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See this home in context

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