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Single Family ResidenceResidential
$135,770$314 / 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 75How 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

138 UNION ST

CALAIS, ME 04619
2
Beds
1
Baths
432 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.
0.22 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.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$136K
$102K low$169K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$924 (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.$63,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$49,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$58,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$112,765

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
CountyWASHINGTON
Lot (acres)The size of the land the home sits on, from county records.0.22
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.Space
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Calais Elementary SchoolB-
Elementary · Grades PK–6 · 0.5 mi
H
Calais Middle/High SchoolC
High · Grades 9–12 · 2.7 mi

District: Calais

Neighborhood · ZIP 04619These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.93

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.3,077
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.79 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,104
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,789
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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

138 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 79% of homes in Washington County
  • Costs more per square foot than 76% of homes in Calais 04619
  • Smaller than 97% of homes in Calais 04619
  • Has a smaller lot than 92% of homes in Washington County
  • Older than 77% of homes in Washington County

What homes are worth in Calais 04619

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

This home
$34K$593K

This home is worth more than 26% of homes in Calais 04619.

How it measures up in Calais 04619

The dot is this home. The mark in the middle is the typical home in Calais 04619.

Estimated value$135,770
CheaperTypical $190,762Pricier

Pricier than 26% of homes nearby

Price per ft²$314
CheaperTypical $230Pricier

Pricier than 76% of homes nearby

Living area432 ft²
SmallerTypical 840 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.22 ac
SmallerTypical 0.4 acBigger

Bigger than 18% of homes nearby

Year built1900
OlderTypical 1900Newer

Newer than 50% of homes nearby

How 138 Union St ranks against every home in each area.
MeasureThis homeCalais 04619Washington County
Estimated valuepricier than$135,77026% of homes21% of homes
Price per ft²pricier than$31476% of homes76% of homes
Living areabigger than432 ft²3% of homes4% of homes
Lot sizebigger than0.22 ac18% of homes8% of homes
Year builtnewer than190050% of homes23% of homes

About 138 Union St

How much is 138 Union St, Calais, ME worth?

The TopHap Estimate for 138 Union St, Calais, ME is $135,770 as of Sep 24, 2026. The likely range is $102,146 to $169,394. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 138 Union St, Calais, ME last sell?

138 Union St, Calais, ME last sold on Mar 19, 2014, according to the county's recorded deed.

How big is 138 Union St, Calais, ME?

138 Union St, Calais, ME has 2 bedrooms, 1 bathrooms, 432 square feet of living space and a 0.22-acre lot.

When was 138 Union St, Calais, ME built?

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

What schools serve 138 Union St, Calais, ME?

138 Union St, Calais, ME is assigned to Calais Elementary School (elementary), rated B-; Calais Middle/High School (high), rated C. All sit in Calais. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 138 Union St, Calais, ME compare to other homes in Calais 04619?

Among the 1,324 homes in Calais 04619, it is worth more than 26% of them ($135,770 against a typical $190,762), its price per square foot is higher than 76% of them ($314 against a typical $230), it is bigger than 3% of them (432 ft² against a typical 840 ft²), its lot is bigger than 18% of them (0.22 ac against a typical 0.4 ac) and it is newer than 50% of them (1900 against a typical 1900). Measured against all of Washington County, it is worth more than 21% 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 138 Union St, Calais, ME?

The 2025 property tax bill for 138 Union St, Calais, ME was $924. The county assessed it at $63,700.

More homes on Union St

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Assigned schools

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