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Single Family ResidenceResidential
$680,465$303 / 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

156 UNION ST

ROCKPORT, ME 04856
3
Beds
2.5
Baths
2,249 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
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

$680K
$567K low$794K high
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.$680,465
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$544,372

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,502 (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.$549,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$138,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$410,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$521,400

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
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.0.21
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.

E
Camden-Rockport Elementary SchoolA
Elementary · Grades PK–4 · 1.2 mi
M
Camden-Rockport Middle SchoolA
Middle · Grades 5–8 · 1.3 mi
H
Camden Hills Regional High SchoolA
High · Grades 9–12 · 1.5 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.Absentee owner
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

156 Union 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 78% of homes in Knox County
  • Costs less per square foot than 68% of homes in Rockport 04856
  • Bigger than 79% of homes in Knox County
  • Has a smaller lot than 97% of homes in Rockport 04856
  • Older than 80% 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
$146K$2M

This home is worth more than 59% 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$680,465
CheaperTypical $632,611Pricier

Pricier than 59% of homes nearby

Price per ft²$303
CheaperTypical $357Pricier

Pricier than 32% of homes nearby

Living area2,249 ft²
SmallerTypical 1,813 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.21 ac
SmallerTypical 1.4 acBigger

Bigger than 3% of homes nearby

Year built1900
OlderTypical 1982Newer

Newer than 20% of homes nearby

How 156 Union St ranks against every home in each area.
MeasureThis homeRockport 04856Knox County
Estimated valuepricier than$680,46559% of homes78% of homes
Price per ft²pricier than$30332% of homes55% of homes
Living areabigger than2,249 ft²68% of homes79% of homes
Lot sizebigger than0.21 ac3% of homes10% of homes
Year builtnewer than190020% of homes23% of homes

About 156 Union St

How much is 156 Union St, Rockport, ME worth?

The TopHap Estimate for 156 Union St, Rockport, ME is $680,465 as of Jul 14, 2026. The likely range is $567,383 to $793,547. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 156 Union St, Rockport, ME last sell?

156 Union St, Rockport, ME last sold on Feb 14, 2019, according to the county's recorded deed.

How big is 156 Union St, Rockport, ME?

156 Union St, Rockport, ME has 3 bedrooms, 2.5 bathrooms, 2,249 square feet of living space and a 0.21-acre lot.

When was 156 Union St, Rockport, ME built?

156 Union St, Rockport, ME was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 156 Union St, Rockport, ME?

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

How does 156 Union St, Rockport, ME compare to other homes in Rockport 04856?

Among the 5,514 homes in Rockport 04856, it is worth more than 59% of them ($680,465 against a typical $632,611), its price per square foot is higher than 32% of them ($303 against a typical $357), it is bigger than 68% of them (2,249 ft² against a typical 1,813 ft²), its lot is bigger than 3% of them (0.21 ac against a typical 1.4 ac) and it is newer than 20% of them (1900 against a typical 1982). Measured against all of Knox County, it is worth more than 78% 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 156 Union St, Rockport, ME?

The 2025 property tax bill for 156 Union St, Rockport, ME was $7,502. The county assessed it at $549,600.

More homes on Union St

Closest homes

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Assigned schools

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