Skip to content
Skip to content
TopHapOpen in map
Triplex (3 Units, Any Combination)Residential

21 RIVER ST

UPTON, MA 01568
3
Beds
3
Baths
1,952 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.
1.53 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,642 (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.$505,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$276,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$505,100

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.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Triplex (3 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Two Family
CountyWorcester
Lot (acres)The size of the land the home sits on, from county records.1.53
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
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(2)

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
Memorial Elementary SchoolA
Elementary · Grades PK–4 · 0.9 mi
H
Nipmuc Regional High SchoolB-
High · Grades 9–12 · 1.6 mi
M
Miscoe Hill Middle SchoolB
Middle · Grades 5–8 · 3.5 mi

District: Mendon-Upton School District

Neighborhood · ZIP 01568These 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.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.98%
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.2.1%
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.8,151
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.376 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$139,227
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$155,465
Average tempThe average temperature here across a full year.48°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.50%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

21 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.

  • Has a bigger lot than 79% of homes in Worcester County
  • Older than 82% of homes in Upton 01568

How it measures up in Upton 01568

The dot is this home. The mark in the middle is the typical home in Upton 01568.

Living area1,952 ft²
SmallerTypical 2,142 ft²Bigger

Bigger than 42% of homes nearby

Lot size1.53 ac
SmallerTypical 1.83 acBigger

Bigger than 47% of homes nearby

Year built1950
OlderTypical 1989Newer

Newer than 18% of homes nearby

How 21 River St ranks against every home in each area.
MeasureThis homeUpton 01568Worcester County
Living areabigger than1,952 ft²42% of homes62% of homes
Lot sizebigger than1.53 ac47% of homes79% of homes
Year builtnewer than195018% of homes33% of homes

About 21 River St

How big is 21 River St, Upton, MA?

21 River St, Upton, MA has 3 bedrooms, 3 bathrooms, 1,952 square feet of living space and a 1.53-acre lot.

When was 21 River St, Upton, MA built?

21 River St, Upton, MA was built in 1950, making it 76 years old. It is a two family home. The building has 1 story.

What schools serve 21 River St, Upton, MA?

21 River St, Upton, MA is assigned to Memorial Elementary School (elementary), rated A; Nipmuc Regional High School (high), rated B-; Miscoe Hill Middle School (middle), rated B. All sit in Mendon-Upton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 River St, Upton, MA compare to other homes in Upton 01568?

Among the 2,793 homes in Upton 01568, it is bigger than 42% of them (1,952 ft² against a typical 2,142 ft²), its lot is bigger than 47% of them (1.53 ac against a typical 1.83 ac) and it is newer than 18% of them (1950 against a typical 1989). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 River St, Upton, MA?

The 2025 property tax bill for 21 River St, Upton, MA was $6,642. The county assessed it at $505,100.

More homes on River St

Closest homes

More homes in Upton 01568

Assigned schools

Explore the area

See this home in context

Open 21 River St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map