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Single Family ResidenceResidential
$375,640$196 / 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 91How 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
Last sold for $220,000 on Aug 2, 2022

21 MAD RIVER RD

CAMPTON, NH 03223
4
Beds
1
Baths
1,913 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
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

$376K
$341K low$411K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$220,000 · Aug 2, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,314 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$308,600 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$117,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$258,970

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
36
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
49
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

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.Cape Cod
CountyGRAFTON
Lot (acres)The size of the land the home sits on, from county records.0.60
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(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
Campton Elementary SchoolB+
Elementary · Grades PK–8 · 1.1 mi
H
Plymouth Regional High SchoolB
High · Grades 9–12 · 7.8 mi

District: Pemi-Baker Regional School District

Neighborhood · ZIP 03223These 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.161
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.70%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.3,761
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.51 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,412
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,570
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.33%

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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 Mad River Rd 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 67% of homes in Campton 03223
  • Costs less per square foot than 88% of homes in Campton 03223
  • Bigger than 66% of homes in Grafton County
  • Has a smaller lot than 83% of homes in Campton 03223
  • Older than 92% of homes in Campton 03223

What homes are worth in Campton 03223

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

This home
$157K$1.1M

This home is worth more than 33% of homes in Campton 03223.

How it measures up in Campton 03223

The dot is this home. The mark in the middle is the typical home in Campton 03223.

Estimated value$375,640
CheaperTypical $449,000Pricier

Pricier than 33% of homes nearby

Price per ft²$196
CheaperTypical $267Pricier

Pricier than 12% of homes nearby

Living area1,913 ft²
SmallerTypical 1,579 ft²Bigger

Bigger than 65% of homes nearby

Lot size0.6 ac
SmallerTypical 1.4 acBigger

Bigger than 17% of homes nearby

Year built1920
OlderTypical 1986Newer

Newer than 8% of homes nearby

How 21 Mad River Rd ranks against every home in each area.
MeasureThis homeCampton 03223Grafton County
Estimated valuepricier than$375,64033% of homes36% of homes
Price per ft²pricier than$19612% of homes18% of homes
Living areabigger than1,913 ft²65% of homes66% of homes
Lot sizebigger than0.6 ac17% of homes30% of homes
Year builtnewer than19208% of homes15% of homes

About 21 Mad River Rd

How much is 21 Mad River Rd, Campton, NH worth?

The TopHap Estimate for 21 Mad River Rd, Campton, NH is $375,640 as of Sep 24, 2026. The likely range is $340,676 to $410,604. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Mad River Rd, Campton, NH last sell?

21 Mad River Rd, Campton, NH last sold on Aug 2, 2022 for $220,000, according to the county's recorded deed.

How big is 21 Mad River Rd, Campton, NH?

21 Mad River Rd, Campton, NH has 4 bedrooms, 1 bathrooms, 1,913 square feet of living space and a 0.60-acre lot.

When was 21 Mad River Rd, Campton, NH built?

21 Mad River Rd, Campton, NH was built in 1920, making it 106 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Mad River Rd, Campton, NH?

21 Mad River Rd, Campton, NH is assigned to Campton Elementary School (elementary), rated B+; Plymouth Regional High School (high), rated B. All sit in Pemi-Baker Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mad River Rd, Campton, NH compare to other homes in Campton 03223?

Among the 2,378 homes in Campton 03223, it is worth more than 33% of them ($375,640 against a typical $449,000), its price per square foot is higher than 12% of them ($196 against a typical $267), it is bigger than 65% of them (1,913 ft² against a typical 1,579 ft²), its lot is bigger than 17% of them (0.6 ac against a typical 1.4 ac) and it is newer than 8% of them (1920 against a typical 1986). Measured against all of Grafton County, it is worth more than 36% 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 Mad River Rd, Campton, NH?

The 2024 property tax bill for 21 Mad River Rd, Campton, NH was $5,314. The county assessed it at $308,600.

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