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Single Family ResidenceResidential
$783,723$407 / 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 82How 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 $270,000 on Aug 12, 2015

131 MILL ST

ROCKPORT, ME 04856
3
Beds
3
Baths
1,926 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.
17.81 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
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

$784K
$645K low$922K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$270,000 · Aug 12, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,156 (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.$597,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$183,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$413,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$601,400

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.28 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.Ranch
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.17.81
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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(1)

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
Camden Hills Regional High SchoolA
High · Grades 9–12 · 2.8 mi
E
Camden-Rockport Elementary SchoolA
Elementary · Grades PK–4 · 3.0 mi
M
Camden-Rockport Middle SchoolA
Middle · Grades 5–8 · 4.9 mi

District: School Administrative District 28

Neighborhood · ZIP 04856These 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.111
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
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.3,784
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.158 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,890
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,265
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

131 Mill 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 82% of homes in Knox County
  • Costs more per square foot than 67% of homes in Knox County
  • Bigger than 69% of homes in Knox County
  • Has a bigger lot than 96% of homes in Rockport 04856

What homes are worth in Rockport 04856

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

This home
$249K$1.7M

This home is worth more than 80% of homes in Rockport 04856.

How it measures up in Rockport 04856

The dot is this home. The mark in the middle is the typical home in Rockport 04856.

Estimated value$783,723
CheaperTypical $480,247Pricier

Pricier than 80% of homes nearby

Price per ft²$407
CheaperTypical $367Pricier

Pricier than 61% of homes nearby

Living area1,926 ft²
SmallerTypical 1,817 ft²Bigger

Bigger than 55% of homes nearby

Lot size17.81 ac
SmallerTypical 1.4 acBigger

Bigger than 96% of homes nearby

Year built1970
OlderTypical 1981Newer

Newer than 36% of homes nearby

How 131 Mill St ranks against every home in each area.
MeasureThis homeRockport 04856Knox County
Estimated valuepricier than$783,72380% of homes82% of homes
Price per ft²pricier than$40761% of homes67% of homes
Living areabigger than1,926 ft²55% of homes69% of homes
Lot sizebigger than17.81 ac96% of homes94% of homes
Year builtnewer than197036% of homes45% of homes

About 131 Mill St

How much is 131 Mill St, Rockport, ME worth?

The TopHap Estimate for 131 Mill St, Rockport, ME is $783,723 as of Sep 24, 2026. The likely range is $645,321 to $922,125. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 131 Mill St, Rockport, ME last sell?

131 Mill St, Rockport, ME last sold on Aug 12, 2015 for $270,000, according to the county's recorded deed.

How big is 131 Mill St, Rockport, ME?

131 Mill St, Rockport, ME has 3 bedrooms, 3 bathrooms, 1,926 square feet of living space and a 17.81-acre lot.

When was 131 Mill St, Rockport, ME built?

131 Mill St, Rockport, ME was built in 1970, making it 56 years old. It is a ranch home. The building has 1 story.

What schools serve 131 Mill St, Rockport, ME?

131 Mill St, Rockport, ME is assigned to Camden Hills Regional High School (high), rated A; Camden-Rockport Elementary School (elementary), rated A; Camden-Rockport Middle School (middle), rated A. All sit in School Administrative District 28. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 131 Mill St, Rockport, ME compare to other homes in Rockport 04856?

Among the 5,514 homes in Rockport 04856, it is worth more than 80% of them ($783,723 against a typical $480,247), its price per square foot is higher than 61% of them ($407 against a typical $367), it is bigger than 55% of them (1,926 ft² against a typical 1,817 ft²), its lot is bigger than 96% of them (17.81 ac against a typical 1.4 ac) and it is newer than 36% of them (1970 against a typical 1981). Measured against all of Knox County, it is worth more than 82% 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 131 Mill St, Rockport, ME?

The 2025 property tax bill for 131 Mill St, Rockport, ME was $8,156. The county assessed it at $597,500.

More homes on Mill St

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