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Single Family ResidenceResidential
$399,508$154 / 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 92How 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 $150,000 on Apr 8, 2005

20 MAIN ST

MONSON, MA 01057
5
Beds
2
Baths
2,588 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.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$400K
$366K low$433K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Apr 8, 2005

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,388 (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.$295,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$54,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$241,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$281,400

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.111 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountyHampden
Lot (acres)The size of the land the home sits on, from county records.0.50
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Granite Valley SchoolB-
Elementary · Grades 1–6 · 0.3 mi
M
Monson High SchoolC-
Middle · Grades 7–12 · 0.7 mi

District: Monson School District

Neighborhood · ZIP 01057These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.57

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.94%
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.11%
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.8,166
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.177 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,298
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,376
Average tempThe average temperature here across a full year.47°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.50%

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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

20 Main 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 70% of homes in Hampden County
  • Costs less per square foot than 97% of homes in Monson 01057
  • Bigger than 88% of homes in Monson 01057
  • Has a smaller lot than 80% of homes in Monson 01057
  • Older than 91% of homes in Hampden County

What homes are worth in Monson 01057

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

This home
$238K$715K

This home is worth more than 53% of homes in Monson 01057.

How it measures up in Monson 01057

The dot is this home. The mark in the middle is the typical home in Monson 01057.

Estimated value$399,508
CheaperTypical $389,239Pricier

Pricier than 53% of homes nearby

Price per ft²$154
CheaperTypical $237Pricier

Pricier than 3% of homes nearby

Living area2,588 ft²
SmallerTypical 1,685 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.5 ac
SmallerTypical 1.42 acBigger

Bigger than 20% of homes nearby

Year built1900
OlderTypical 1974Newer

Newer than 16% of homes nearby

How 20 Main St ranks against every home in each area.
MeasureThis homeMonson 01057Hampden County
Estimated valuepricier than$399,50853% of homes70% of homes
Price per ft²pricier than$1543% of homes6% of homes
Living areabigger than2,588 ft²88% of homes86% of homes
Lot sizebigger than0.5 ac20% of homes68% of homes
Year builtnewer than190016% of homes9% of homes

About 20 Main St

How much is 20 Main St, Monson, MA worth?

The TopHap Estimate for 20 Main St, Monson, MA is $399,508 as of Sep 24, 2026. The likely range is $366,370 to $432,646. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Main St, Monson, MA last sell?

20 Main St, Monson, MA last sold on Apr 8, 2005 for $150,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20 Main St, Monson, MA?

20 Main St, Monson, MA has 5 bedrooms, 2 bathrooms, 2,588 square feet of living space and a 0.50-acre lot.

When was 20 Main St, Monson, MA built?

20 Main St, Monson, MA was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 20 Main St, Monson, MA?

20 Main St, Monson, MA is assigned to Granite Valley School (elementary), rated B-; Monson High School (middle), rated C-. All sit in Monson School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Main St, Monson, MA compare to other homes in Monson 01057?

Among the 3,070 homes in Monson 01057, it is worth more than 53% of them ($399,508 against a typical $389,239), its price per square foot is higher than 3% of them ($154 against a typical $237), it is bigger than 88% of them (2,588 ft² against a typical 1,685 ft²), its lot is bigger than 20% of them (0.5 ac against a typical 1.42 ac) and it is newer than 16% of them (1900 against a typical 1974). Measured against all of Hampden County, it is worth more than 70% 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 20 Main St, Monson, MA?

The 2025 property tax bill for 20 Main St, Monson, MA was $4,388. The county assessed it at $295,100.

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