Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$185,938$238 / 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 70How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

540 UNION ST

BANGOR, ME 04401
3
Beds
1
Baths
780 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1939
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$186K
$131K low$241K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,425 (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.$137,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$109,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$130,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$159,410

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
CountyPENOBSCOT
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Concrete
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

Transaction History(4)

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
Fourteenth Street School
Elementary · Grades PK–3 · 0.3 mi
M
James F. Doughty SchoolB-
Middle · Grades 6–8 · 0.7 mi
H
Bangor High SchoolB
High · Grades 9–12 · 1.7 mi

District: Bangor

Neighborhood · ZIP 04401These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
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.0.9%
PopulationHow many people live in this area.46,010
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.443 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,092
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,961
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

Owner Tools

Do you own this home?
Claim this home

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

540 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 less than 93% of homes in Bangor 04401
  • Smaller than 97% of homes in Bangor 04401
  • Has a smaller lot than 81% of homes in Penobscot County
  • Older than 71% of homes in Penobscot County

What homes are worth in Bangor 04401

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

This home
$138K$734K

This home is worth more than 7% of homes in Bangor 04401.

How it measures up in Bangor 04401

The dot is this home. The mark in the middle is the typical home in Bangor 04401.

Estimated value$185,938
CheaperTypical $316,204Pricier

Pricier than 7% of homes nearby

Price per ft²$238
CheaperTypical $217Pricier

Pricier than 63% of homes nearby

Living area780 ft²
SmallerTypical 1,512 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.23 ac
SmallerTypical 0.36 acBigger

Bigger than 37% of homes nearby

Year built1939
OlderTypical 1958Newer

Newer than 37% of homes nearby

How 540 Union St ranks against every home in each area.
MeasureThis homeBangor 04401Penobscot County
Estimated valuepricier than$185,9387% of homes27% of homes
Price per ft²pricier than$23863% of homes63% of homes
Living areabigger than780 ft²3% of homes8% of homes
Lot sizebigger than0.23 ac37% of homes19% of homes
Year builtnewer than193937% of homes29% of homes

About 540 Union St

How much is 540 Union St, Bangor, ME worth?

The TopHap Estimate for 540 Union St, Bangor, ME is $185,938 as of Aug 30, 2026. The likely range is $130,994 to $240,882. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 540 Union St, Bangor, ME last sell?

540 Union St, Bangor, ME last sold on Oct 26, 2015, according to the county's recorded deed.

How big is 540 Union St, Bangor, ME?

540 Union St, Bangor, ME has 3 bedrooms, 1 bathrooms, 780 square feet of living space and a 0.23-acre lot.

When was 540 Union St, Bangor, ME built?

540 Union St, Bangor, ME was built in 1939, making it 87 years old. It is a conventional home. The building has 1 story.

What schools serve 540 Union St, Bangor, ME?

540 Union St, Bangor, ME is assigned to Fourteenth Street School (elementary); James F. Doughty School (middle), rated B-; Bangor High School (high), rated B. All sit in Bangor. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 540 Union St, Bangor, ME compare to other homes in Bangor 04401?

Among the 14,208 homes in Bangor 04401, it is worth more than 7% of them ($185,938 against a typical $316,204), its price per square foot is higher than 63% of them ($238 against a typical $217), it is bigger than 3% of them (780 ft² against a typical 1,512 ft²), its lot is bigger than 37% of them (0.23 ac against a typical 0.36 ac) and it is newer than 37% of them (1939 against a typical 1958). Measured against all of Penobscot County, it is worth more than 27% 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 540 Union St, Bangor, ME?

The 2025 property tax bill for 540 Union St, Bangor, ME was $2,425. The county assessed it at $137,000.

More homes on Union St

Closest homes

More homes in Bangor 04401

Assigned schools

Explore the area

See this home in context

Open 540 Union St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map