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CondominiumResidential
$331,159$252 / 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 94How 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 $330,000 on Jul 16, 2026

21 ARLINGTON ST

MERRIMACK, NH 03054
2
Beds
1.5
Baths
1,313 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.
1984
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$331K
$311K low$351K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$330,000 · Jul 16, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,477 (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.$202,500 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$202,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$189,905

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyHILLSBOROUGH
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.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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.

H
Merrimack High SchoolC
High · Grades 9–12 · 1.0 mi
E
Thorntons Ferry SchoolB-
Elementary · Grades PK–4 · 2.5 mi
M
Merrimack Middle SchoolC+
Middle · Grades 7–8 · 3.0 mi

District: Merrimack School District

Neighborhood · ZIP 03054These 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.49
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.88

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
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.27,283
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.817 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$123,868
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,079
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

21 Arlington 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 94% of homes in Merrimack 03054
  • Costs less per square foot than 78% of homes in Hillsborough County
  • Smaller than 88% of homes in Merrimack 03054

What homes are worth in Merrimack 03054

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

This home
$284K$987K

This home is worth more than 6% of homes in Merrimack 03054.

How it measures up in Merrimack 03054

The dot is this home. The mark in the middle is the typical home in Merrimack 03054.

Estimated value$331,159
CheaperTypical $549,950Pricier

Pricier than 6% of homes nearby

Price per ft²$252
CheaperTypical $263Pricier

Pricier than 39% of homes nearby

Living area1,313 ft²
SmallerTypical 2,016 ft²Bigger

Bigger than 12% of homes nearby

Year built1984
OlderTypical 1984Newer

Newer than 51% of homes nearby

How 21 Arlington St ranks against every home in each area.
MeasureThis homeMerrimack 03054Hillsborough County
Estimated valuepricier than$331,1596% of homes10% of homes
Price per ft²pricier than$25239% of homes22% of homes
Living areabigger than1,313 ft²12% of homes28% of homes
Year builtnewer than198451% of homes57% of homes

About 21 Arlington St

How much is 21 Arlington St, Merrimack, NH worth?

The TopHap Estimate for 21 Arlington St, Merrimack, NH is $331,159 as of Aug 30, 2026. The likely range is $311,011 to $351,307. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Arlington St, Merrimack, NH last sell?

21 Arlington St, Merrimack, NH last sold on Jul 16, 2026 for $330,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Arlington St, Merrimack, NH?

21 Arlington St, Merrimack, NH has 2 bedrooms, 1.5 bathrooms and 1,313 square feet of living space.

When was 21 Arlington St, Merrimack, NH built?

21 Arlington St, Merrimack, NH was built in 1984, making it 42 years old. The building has 2 stories.

What schools serve 21 Arlington St, Merrimack, NH?

21 Arlington St, Merrimack, NH is assigned to Merrimack High School (high), rated C; Thorntons Ferry School (elementary), rated B-; Merrimack Middle School (middle), rated C+. All sit in Merrimack School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Arlington St, Merrimack, NH compare to other homes in Merrimack 03054?

Among the 9,896 homes in Merrimack 03054, it is worth more than 6% of them ($331,159 against a typical $549,950), its price per square foot is higher than 39% of them ($252 against a typical $263), it is bigger than 12% of them (1,313 ft² against a typical 2,016 ft²) and it is newer than 51% of them (1984 against a typical 1984). Measured against all of Hillsborough County, it is worth more than 10% 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 21 Arlington St, Merrimack, NH?

The 2025 property tax bill for 21 Arlington St, Merrimack, NH was $4,477. The county assessed it at $202,500.

More homes on Arlington St

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Assigned schools

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