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Single Family ResidenceResidential
$712,839$335 / 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 95How 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
Last sold for $135,000 on Nov 30, 1992

4 UNION ST

MERRIMAC, MA 01860
4
Beds
2
Baths
2,128 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$713K
$680K low$746K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$135,000 · Nov 30, 1992

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,040 (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.$606,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$290,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$316,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$645,715

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.Colonial
CountyESSEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1991
Lot (acres)The size of the land the home sits on, from county records.0.27
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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(7)

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
Dr. Frederick N. Sweetsir Elementary School
Elementary · Grades PK–2 · 0.9 mi
H
Pentucket Regional High SchoolB+
High · Grades 9–12 · 3.2 mi
M
Pentucket Regional Middle SchoolC+
Middle · Grades 7–8 · 3.4 mi

District: Pentucket School District

Neighborhood · ZIP 01860These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.95

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.6,895
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.759 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,610
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,088
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

4 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.

  • Costs less per square foot than 77% of homes in Essex County
  • Has a smaller lot than 75% of homes in Merrimac 01860
  • Newer than 79% of homes in Essex County

What homes are worth in Merrimac 01860

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

This home
$369K$1.2M

This home is worth more than 60% of homes in Merrimac 01860.

How it measures up in Merrimac 01860

The dot is this home. The mark in the middle is the typical home in Merrimac 01860.

Estimated value$712,839
CheaperTypical $655,155Pricier

Pricier than 60% of homes nearby

Price per ft²$335
CheaperTypical $345Pricier

Pricier than 43% of homes nearby

Living area2,128 ft²
SmallerTypical 1,927 ft²Bigger

Bigger than 60% of homes nearby

Lot size0.27 ac
SmallerTypical 0.53 acBigger

Bigger than 25% of homes nearby

Year built1987
OlderTypical 1984Newer

Newer than 57% of homes nearby

How 4 Union St ranks against every home in each area.
MeasureThis homeMerrimac 01860Essex County
Estimated valuepricier than$712,83960% of homes53% of homes
Price per ft²pricier than$33543% of homes23% of homes
Living areabigger than2,128 ft²60% of homes62% of homes
Lot sizebigger than0.27 ac25% of homes52% of homes
Year builtnewer than198757% of homes79% of homes

About 4 Union St

How much is 4 Union St, Merrimac, MA worth?

The TopHap Estimate for 4 Union St, Merrimac, MA is $712,839 as of Aug 30, 2026. The likely range is $680,048 to $745,630. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Union St, Merrimac, MA last sell?

4 Union St, Merrimac, MA last sold on Nov 30, 1992 for $135,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4 Union St, Merrimac, MA?

4 Union St, Merrimac, MA has 4 bedrooms, 2 bathrooms, 2,128 square feet of living space and a 0.27-acre lot.

When was 4 Union St, Merrimac, MA built?

4 Union St, Merrimac, MA was built in 1987, making it 39 years old. It is a colonial home. The building has 2 stories.

What schools serve 4 Union St, Merrimac, MA?

4 Union St, Merrimac, MA is assigned to Dr. Frederick N. Sweetsir Elementary School (elementary); Pentucket Regional High School (high), rated B+; Pentucket Regional Middle School (middle), rated C+. All sit in Pentucket School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Union St, Merrimac, MA compare to other homes in Merrimac 01860?

Among the 2,134 homes in Merrimac 01860, it is worth more than 60% of them ($712,839 against a typical $655,155), its price per square foot is higher than 43% of them ($335 against a typical $345), it is bigger than 60% of them (2,128 ft² against a typical 1,927 ft²), its lot is bigger than 25% of them (0.27 ac against a typical 0.53 ac) and it is newer than 57% of them (1987 against a typical 1984). Measured against all of Essex County, it is worth more than 53% 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 4 Union St, Merrimac, MA?

The 2025 property tax bill for 4 Union St, Merrimac, MA was $8,040. The county assessed it at $606,800.

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