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Single Family ResidenceResidential
$427,827$351 / 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 Jul 14, 2026
Last sold for $395,400 on Oct 13, 2022

151 MILL ST

ROCKPORT, ME 04856
2
Beds
1
Baths
1,220 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.
2.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1797
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

$428K
$357K low$499K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$395,400 · Oct 13, 2022
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$111,527
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$89,222
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.76%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$316,300
UNIVERSITY CREDIT UNION · P · recorded Oct 13, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,708 (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.$344,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$115,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$229,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$300,300

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
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.2.38
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(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 · 2.6 mi
E
Camden-Rockport Elementary SchoolA
Elementary · Grades PK–4 · 2.8 mi
M
Camden-Rockport Middle SchoolA
Middle · Grades 5–8 · 4.8 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

151 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.

  • Costs more per square foot than 68% of homes in Knox County
  • Smaller than 77% of homes in Rockport 04856
  • Has a bigger lot than 70% of homes in Rockport 04856
  • Among the oldest 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
$233K$2M

This home is worth more than 40% 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$427,827
CheaperTypical $632,611Pricier

Pricier than 40% of homes nearby

Price per ft²$351
CheaperTypical $358Pricier

Pricier than 48% of homes nearby

Living area1,220 ft²
SmallerTypical 1,820 ft²Bigger

Bigger than 23% of homes nearby

Lot size2.38 ac
SmallerTypical 1.41 acBigger

Bigger than 70% of homes nearby

Year built1797
OlderTypical 1982Newer

Older than almost all homes nearby

How 151 Mill St ranks against every home in each area.
MeasureThis homeRockport 04856Knox County
Estimated valuepricier than$427,82740% of homes55% of homes
Price per ft²pricier than$35148% of homes68% of homes
Living areabigger than1,220 ft²23% of homes33% of homes
Lot sizebigger than2.38 ac70% of homes70% of homes
Year builtnewer than1797almost no homesalmost no homes

About 151 Mill St

How much is 151 Mill St, Rockport, ME worth?

The TopHap Estimate for 151 Mill St, Rockport, ME is $427,827 as of Jul 14, 2026. The likely range is $356,870 to $498,784. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 151 Mill St, Rockport, ME last sell?

151 Mill St, Rockport, ME last sold on Oct 13, 2022 for $395,400, according to the county's recorded deed.

How big is 151 Mill St, Rockport, ME?

151 Mill St, Rockport, ME has 2 bedrooms, 1 bathrooms, 1,220 square feet of living space and a 2.38-acre lot.

When was 151 Mill St, Rockport, ME built?

151 Mill St, Rockport, ME was built in 1797, making it 229 years old. It is a cape cod home. The building has 2 stories.

What schools serve 151 Mill St, Rockport, ME?

151 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 151 Mill St, Rockport, ME compare to other homes in Rockport 04856?

Among the 5,514 homes in Rockport 04856, it is worth more than 40% of them ($427,827 against a typical $632,611), its price per square foot is higher than 48% of them ($351 against a typical $358), it is bigger than 23% of them (1,220 ft² against a typical 1,820 ft²), its lot is bigger than 70% of them (2.38 ac against a typical 1.41 ac) and it is newer than almost none of them (1797 against a typical 1982). Measured against all of Knox County, it is worth more than 55% 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 151 Mill St, Rockport, ME?

The 2025 property tax bill for 151 Mill St, Rockport, ME was $4,708. The county assessed it at $344,900.

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Assigned schools

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