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Single Family ResidenceResidential
$390,764$432 / 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 88How 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 $350,000 on May 16, 2025

831 MAIN ST

MONMOUTH, ME 04259
3
Beds
2
Baths
904 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$391K
$344K low$437K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$350,000 · May 16, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,818 (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.$334,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$51,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$283,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$194,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$314,830

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.Cape Cod
CountyKENNEBEC
Lot (acres)The size of the land the home sits on, from county records.0.51
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.

H
Monmouth AcademyD
High · Grades 9–12 · 0.5 mi
E
Monmouth Memorial SchoolB-
Elementary · Grades PK–8 · 0.6 mi

District: Regional School Unit 02

Neighborhood · ZIP 04259These 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.121
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.79%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.3,426
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.102 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,246
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,357
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

831 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 67% of homes in Kennebec County
  • Costs more per square foot than 87% of homes in Kennebec County
  • Smaller than 85% of homes in Kennebec County
  • Has a smaller lot than 83% of homes in Monmouth 04259
  • Newer than 97% of homes in Monmouth 04259

What homes are worth in Monmouth 04259

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

This home
$197K$926K

This home is worth more than 42% of homes in Monmouth 04259.

How it measures up in Monmouth 04259

The dot is this home. The mark in the middle is the typical home in Monmouth 04259.

Estimated value$390,764
CheaperTypical $417,100Pricier

Pricier than 42% of homes nearby

Price per ft²$432
CheaperTypical $300Pricier

Pricier than 80% of homes nearby

Living area904 ft²
SmallerTypical 1,336 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.51 ac
SmallerTypical 1.52 acBigger

Bigger than 17% of homes nearby

Year built2012
OlderTypical 1977Newer

Newer than 97% of homes nearby

How 831 Main St ranks against every home in each area.
MeasureThis homeMonmouth 04259Kennebec County
Estimated valuepricier than$390,76442% of homes67% of homes
Price per ft²pricier than$43280% of homes87% of homes
Living areabigger than904 ft²18% of homes15% of homes
Lot sizebigger than0.51 ac17% of homes32% of homes
Year builtnewer than201297% of homes95% of homes

About 831 Main St

How much is 831 Main St, Monmouth, ME worth?

The TopHap Estimate for 831 Main St, Monmouth, ME is $390,764 as of Oct 21, 2026. The likely range is $344,243 to $437,285. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 831 Main St, Monmouth, ME last sell?

831 Main St, Monmouth, ME last sold on May 16, 2025 for $350,000, according to the county's recorded deed.

How big is 831 Main St, Monmouth, ME?

831 Main St, Monmouth, ME has 3 bedrooms, 2 bathrooms, 904 square feet of living space and a 0.51-acre lot.

When was 831 Main St, Monmouth, ME built?

831 Main St, Monmouth, ME was built in 2012, making it 14 years old. It is a cape cod home. The building has 2 stories.

What schools serve 831 Main St, Monmouth, ME?

831 Main St, Monmouth, ME is assigned to Monmouth Academy (high), rated D; Monmouth Memorial School (elementary), rated B-. All sit in Regional School Unit 02. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 831 Main St, Monmouth, ME compare to other homes in Monmouth 04259?

Among the 1,683 homes in Monmouth 04259, it is worth more than 42% of them ($390,764 against a typical $417,100), its price per square foot is higher than 80% of them ($432 against a typical $300), it is bigger than 18% of them (904 ft² against a typical 1,336 ft²), its lot is bigger than 17% of them (0.51 ac against a typical 1.52 ac) and it is newer than 97% of them (2012 against a typical 1977). Measured against all of Kennebec County, it is worth more than 67% 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 831 Main St, Monmouth, ME?

The 2025 property tax bill for 831 Main St, Monmouth, ME was $3,818. The county assessed it at $334,900.

More homes on Main St

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Assigned schools

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