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Single Family ResidenceResidential
$331,188$510 / 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 83How 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

643 BACK RIVER RD

BOOTHBAY, ME 04537
4
Beds
1.5
Baths
650 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.
0.96 ac
Lot SizeThe size of the land the home sits on, from county records.
1889
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$331K
$275K low$387K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,045 (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.$169,003 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$53,574
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$115,429
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$600,590

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.10 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.Historical
CountyLINCOLN
Lot (acres)The size of the land the home sits on, from county records.0.96
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

Transaction History(6)

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
Boothbay Region Elementary SchoolB
Elementary · Grades PK–8 · 3.5 mi
H
Boothbay Region High SchoolB-
High · Grades 9–12 · 3.6 mi

District: Boothbay-Boothbay Harbor Community School District

Neighborhood · ZIP 04537These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.9%
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.2,259
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.105 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,505
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,333
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

643 Back 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.

  • Worth less than 89% of homes in Boothbay 04537
  • Costs more per square foot than 76% of homes in Lincoln County
  • Smaller than 92% of homes in Lincoln County
  • Has a smaller lot than 74% of homes in Lincoln County
  • Older than 90% of homes in Boothbay 04537

What homes are worth in Boothbay 04537

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

This home
$161K$1.8M

This home is worth more than 11% of homes in Boothbay 04537.

How it measures up in Boothbay 04537

The dot is this home. The mark in the middle is the typical home in Boothbay 04537.

Estimated value$331,188
CheaperTypical $570,568Pricier

Pricier than 11% of homes nearby

Price per ft²$510
CheaperTypical $576Pricier

Pricier than 40% of homes nearby

Living area650 ft²
SmallerTypical 980 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.96 ac
SmallerTypical 1.41 acBigger

Bigger than 31% of homes nearby

Year built1889
OlderTypical 1984Newer

Newer than 10% of homes nearby

How 643 Back River Rd ranks against every home in each area.
MeasureThis homeBoothbay 04537Lincoln County
Estimated valuepricier than$331,18811% of homes28% of homes
Price per ft²pricier than$51040% of homes76% of homes
Living areabigger than650 ft²15% of homes8% of homes
Lot sizebigger than0.96 ac31% of homes26% of homes
Year builtnewer than188910% of homes12% of homes

About 643 Back River Rd

How much is 643 Back River Rd, Boothbay, ME worth?

The TopHap Estimate for 643 Back River Rd, Boothbay, ME is $331,188 as of Sep 24, 2026. The likely range is $274,956 to $387,420. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 Back River Rd, Boothbay, ME last sell?

643 Back River Rd, Boothbay, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 643 Back River Rd, Boothbay, ME?

643 Back River Rd, Boothbay, ME has 4 bedrooms, 1.5 bathrooms, 650 square feet of living space and a 0.96-acre lot.

When was 643 Back River Rd, Boothbay, ME built?

643 Back River Rd, Boothbay, ME was built in 1889, making it 137 years old. It is a historical home. The building has 2 stories.

What schools serve 643 Back River Rd, Boothbay, ME?

643 Back River Rd, Boothbay, ME is assigned to Boothbay Region Elementary School (elementary), rated B; Boothbay Region High School (high), rated B-. All sit in Boothbay-Boothbay Harbor Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 Back River Rd, Boothbay, ME compare to other homes in Boothbay 04537?

Among the 1,957 homes in Boothbay 04537, it is worth more than 11% of them ($331,188 against a typical $570,568), its price per square foot is higher than 40% of them ($510 against a typical $576), it is bigger than 15% of them (650 ft² against a typical 980 ft²), its lot is bigger than 31% of them (0.96 ac against a typical 1.41 ac) and it is newer than 10% of them (1889 against a typical 1984). Measured against all of Lincoln County, it is worth more than 28% 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 643 Back River Rd, Boothbay, ME?

The 2025 property tax bill for 643 Back River Rd, Boothbay, ME was $2,045. The county assessed it at $169,003.

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