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Single Family ResidenceResidential
$543,810
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 80How 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

30 WATER ST

CASTINE, ME 04421
0
Baths
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$544K
$436K low$652K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,562 (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.$422,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$287,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$135,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHANCOCK
Lot (acres)The size of the land the home sits on, from county records.0.30
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
Adams School
Elementary · Grades PK–8 · 0.2 mi

District: Castine

Neighborhood · ZIP 04421These 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.70
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.55%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.1,245
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.65 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,417
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,357
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

30 Water 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.

  • Has a smaller lot than 90% of homes in Hancock County

What homes are worth in Castine 04421

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

This home
$95K$2M

This home is worth more than 36% of homes in Castine 04421.

How it measures up in Castine 04421

The dot is this home. The mark in the middle is the typical home in Castine 04421.

Estimated value$543,810
CheaperTypical $647,592Pricier

Pricier than 36% of homes nearby

Lot size0.3 ac
SmallerTypical 1.25 acBigger

Bigger than 15% of homes nearby

How 30 Water St ranks against every home in each area.
MeasureThis homeCastine 04421Hancock County
Estimated valuepricier than$543,81036% of homes63% of homes
Lot sizebigger than0.3 ac15% of homes10% of homes

About 30 Water St

How much is 30 Water St, Castine, ME worth?

The TopHap Estimate for 30 Water St, Castine, ME is $543,810 as of Sep 24, 2026. The likely range is $435,846 to $651,774. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Water St, Castine, ME last sell?

30 Water St, Castine, ME last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 30 Water St, Castine, ME?

30 Water St, Castine, ME is assigned to Adams School (elementary). All sit in Castine. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 30 Water St, Castine, ME compare to other homes in Castine 04421?

Among the 341 homes in Castine 04421, it is worth more than 36% of them ($543,810 against a typical $647,592) and its lot is bigger than 15% of them (0.3 ac against a typical 1.25 ac). Measured against all of Hancock County, it is worth more than 63% 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 30 Water St, Castine, ME?

The 2025 property tax bill for 30 Water St, Castine, ME was $4,562. The county assessed it at $422,400.

More homes on Water St

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Assigned schools

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