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Single Family ResidenceResidential
$2,112,520$941 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $877,000 on Feb 8, 2019

666 RIVER RD

WESTPORT, MA 02790
4
Beds
0
Baths
2,246 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.
1.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1850
Year BuiltThe year the home was originally built, according to county records.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.1M
$1.9M low$2.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$877,000 · Feb 8, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,050 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,929,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$916,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,013,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,841,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,888,209

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.48 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.26%
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.minimal

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.Historical
CountyBRISTOL
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2014
Lot (acres)The size of the land the home sits on, from county records.1.50
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
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

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.

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

M
Westport Middle-High SchoolC
Middle · Grades 5–12 · 7.4 mi
E
Westport Elementary SchoolC
Elementary · Grades 1–4 · 7.6 mi

District: Westport School District

Neighborhood · ZIP 02790These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
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.17,394
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.271 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,082
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,569
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

666 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.

  • Among the most valuable homes in Bristol County
  • Among the highest price per square foot in Bristol County
  • Bigger than 73% of homes in Bristol County
  • Has a bigger lot than 86% of homes in Bristol County
  • Among the oldest homes in Westport 02790

What homes are worth in Westport 02790

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

This home
$340K$2.4M

This home is worth more than 97% of homes in Westport 02790.

How it measures up in Westport 02790

The dot is this home. The mark in the middle is the typical home in Westport 02790.

Estimated value$2,112,520
CheaperTypical $636,139Pricier

Pricier than 97% of homes nearby

Price per ft²$941
CheaperTypical $375Pricier

Pricier than 97% of homes nearby

Living area2,246 ft²
SmallerTypical 1,760 ft²Bigger

Bigger than 70% of homes nearby

Lot size1.5 ac
SmallerTypical 1 acBigger

Bigger than 69% of homes nearby

Year built1850
OlderTypical 1972Newer

Older than almost all homes nearby

How 666 River Rd ranks against every home in each area.
MeasureThis homeWestport 02790Bristol County
Estimated valuepricier than$2,112,52097% of homesalmost all homes
Price per ft²pricier than$94197% of homesalmost all homes
Living areabigger than2,246 ft²70% of homes73% of homes
Lot sizebigger than1.5 ac69% of homes86% of homes
Year builtnewer than1850almost no homesalmost no homes

About 666 River Rd

How much is 666 River Rd, Westport, MA worth?

The TopHap Estimate for 666 River Rd, Westport, MA is $2,112,520 as of Oct 21, 2026. The likely range is $1,899,026 to $2,326,014. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 666 River Rd, Westport, MA last sell?

666 River Rd, Westport, MA last sold on Feb 8, 2019 for $877,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 666 River Rd, Westport, MA?

666 River Rd, Westport, MA has 4 bedrooms, 2,246 square feet of living space and a 1.50-acre lot.

When was 666 River Rd, Westport, MA built?

666 River Rd, Westport, MA was built in 1850, making it 176 years old. It is a historical home.

What schools serve 666 River Rd, Westport, MA?

666 River Rd, Westport, MA is assigned to Westport Middle-High School (middle), rated C; Westport Elementary School (elementary), rated C. All sit in Westport School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 666 River Rd, Westport, MA compare to other homes in Westport 02790?

Among the 7,200 homes in Westport 02790, it is worth more than 97% of them ($2,112,520 against a typical $636,139), its price per square foot is higher than 97% of them ($941 against a typical $375), it is bigger than 70% of them (2,246 ft² against a typical 1,760 ft²), its lot is bigger than 69% of them (1.5 ac against a typical 1 ac) and it is newer than almost none of them (1850 against a typical 1972). Measured against all of Bristol County, it is worth more than almost all 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 666 River Rd, Westport, MA?

The 2026 property tax bill for 666 River Rd, Westport, MA was $14,050. The county assessed it at $1,929,900.

More homes on River Rd

Closest homes

More homes in Westport 02790

Assigned schools

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See this home in context

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