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Single Family ResidenceResidential
$180,858$201 / 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 78How 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

639 RIVER AVE

GARDINER, ME 04345
3
Beds
1
Baths
900 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1870
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$181K
$141K low$221K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,796 (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.$68,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$50,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$243,960

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.35 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Conventional
CountyKENNEBEC
Lot (acres)The size of the land the home sits on, from county records.0.20
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Laura E Richards School
Elementary · Grades PK–2 · 2.5 mi
M
Gardiner Regional Middle SchoolC+
Middle · Grades 6–8 · 3.0 mi
H
Gardiner Area High SchoolB-
High · Grades 9–12 · 3.2 mi

District: School Administrative District 11

Neighborhood · ZIP 04345These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.91%
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.0.8%
PopulationHow many people live in this area.12,905
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.169 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,268
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,055
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

639 River Ave 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 less than 96% of homes in Gardiner 04345
  • Costs less per square foot than 66% of homes in Kennebec County
  • Smaller than 90% of homes in Gardiner 04345
  • Has a smaller lot than 89% of homes in Gardiner 04345
  • Older than 94% of homes in Kennebec County

What homes are worth in Gardiner 04345

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

This home
$144K$652K

This home is worth more than 4% of homes in Gardiner 04345.

How it measures up in Gardiner 04345

The dot is this home. The mark in the middle is the typical home in Gardiner 04345.

Estimated value$180,858
CheaperTypical $321,634Pricier

Pricier than 4% of homes nearby

Price per ft²$201
CheaperTypical $205Pricier

Pricier than 48% of homes nearby

Living area900 ft²
SmallerTypical 1,485 ft²Bigger

Bigger than 10% of homes nearby

Lot size0.2 ac
SmallerTypical 1.1 acBigger

Bigger than 11% of homes nearby

Year built1870
OlderTypical 1948Newer

Newer than 19% of homes nearby

How 639 River Ave ranks against every home in each area.
MeasureThis homeGardiner 04345Kennebec County
Estimated valuepricier than$180,8584% of homes10% of homes
Price per ft²pricier than$20148% of homes34% of homes
Living areabigger than900 ft²10% of homes15% of homes
Lot sizebigger than0.2 ac11% of homes12% of homes
Year builtnewer than187019% of homes6% of homes

About 639 River Ave

How much is 639 River Ave, Gardiner, ME worth?

The TopHap Estimate for 639 River Ave, Gardiner, ME is $180,858 as of Jul 14, 2026. The likely range is $140,555 to $221,161. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 639 River Ave, Gardiner, ME last sell?

639 River Ave, Gardiner, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 639 River Ave, Gardiner, ME?

639 River Ave, Gardiner, ME has 3 bedrooms, 1 bathrooms, 900 square feet of living space and a 0.20-acre lot.

When was 639 River Ave, Gardiner, ME built?

639 River Ave, Gardiner, ME was built in 1870, making it 156 years old. It is a conventional home. The building has 2 stories.

What schools serve 639 River Ave, Gardiner, ME?

639 River Ave, Gardiner, ME is assigned to Laura E Richards School (elementary); Gardiner Regional Middle School (middle), rated C+; Gardiner Area High School (high), rated B-. All sit in School Administrative District 11. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 639 River Ave, Gardiner, ME compare to other homes in Gardiner 04345?

Among the 4,737 homes in Gardiner 04345, it is worth more than 4% of them ($180,858 against a typical $321,634), its price per square foot is higher than 48% of them ($201 against a typical $205), it is bigger than 10% of them (900 ft² against a typical 1,485 ft²), its lot is bigger than 11% of them (0.2 ac against a typical 1.1 ac) and it is newer than 19% of them (1870 against a typical 1948). Measured against all of Kennebec County, it is worth more than 10% 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 639 River Ave, Gardiner, ME?

The 2025 property tax bill for 639 River Ave, Gardiner, ME was $1,796. The county assessed it at $68,300.

More homes on River Ave

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Assigned schools

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