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Single Family ResidenceResidential
$591,760
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 67How 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

18 DOLPHIN ST

VINALHAVEN, ME 04863
0
Baths
4.35 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$592K
$396K low$788K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,306 (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.$545,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$274,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$270,400

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.35 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.4.35
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Vinalhaven SchoolD+
Elementary · Grades PK–12 · 0.9 mi

District: School Administrative District 08

Neighborhood · ZIP 04863These 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.157
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.52%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
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.1,220
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,320
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,548
Average tempThe average temperature here across a full year.45°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

18 Dolphin 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 more than 89% of homes in Vinalhaven 04863
  • Has a bigger lot than 83% of homes in Vinalhaven 04863

What homes are worth in Vinalhaven 04863

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

This home
$121K$1.1M

This home is worth more than 89% of homes in Vinalhaven 04863.

How it measures up in Vinalhaven 04863

The dot is this home. The mark in the middle is the typical home in Vinalhaven 04863.

Estimated value$591,760
CheaperTypical $283,997Pricier

Pricier than 89% of homes nearby

Lot size4.35 ac
SmallerTypical 0.92 acBigger

Bigger than 83% of homes nearby

How 18 Dolphin St ranks against every home in each area.
MeasureThis homeVinalhaven 04863Knox County
Estimated valuepricier than$591,76089% of homes71% of homes
Lot sizebigger than4.35 ac83% of homes81% of homes

About 18 Dolphin St

How much is 18 Dolphin St, Vinalhaven, ME worth?

The TopHap Estimate for 18 Dolphin St, Vinalhaven, ME is $591,760 as of Aug 30, 2026. The likely range is $395,906 to $787,614. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Dolphin St, Vinalhaven, ME last sell?

18 Dolphin St, Vinalhaven, ME last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 18 Dolphin St, Vinalhaven, ME?

18 Dolphin St, Vinalhaven, ME is assigned to Vinalhaven School (elementary), rated D+. All sit in School Administrative District 08. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Dolphin St, Vinalhaven, ME compare to other homes in Vinalhaven 04863?

Among the 641 homes in Vinalhaven 04863, it is worth more than 89% of them ($591,760 against a typical $283,997) and its lot is bigger than 83% of them (4.35 ac against a typical 0.92 ac). Measured against all of Knox County, it is worth more than 71% 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 18 Dolphin St, Vinalhaven, ME?

The 2025 property tax bill for 18 Dolphin St, Vinalhaven, ME was $7,306. The county assessed it at $545,200.

Closest homes

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Assigned schools

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