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Single Family ResidenceResidential
$677,926$314 / 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 79How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $103,500 on Nov 25, 2009

21 POSEIDON WAY

COPPEROPOLIS, CA 95228
3
Beds
2.5
Baths
2,161 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2008
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$678K
$535K low$821K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$103,500 · Nov 25, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,632 (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.$304,962 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$52,659
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$252,303
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$298,983

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.Modern
CountyCALAVERAS
Lot (acres)The size of the land the home sits on, from county records.0.20
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

Foreclosure Filings(4)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Copperopolis Elementary SchoolC-
Elementary · Grades KG–6 · 5.8 mi
M
Mark Twain Elementary SchoolD
Middle · Grades KG–8 · 11.7 mi
H
Bret Harte Union High SchoolB-
High · Grades 9–12 · 12.0 mi

District: Bret Harte Union High School District

Neighborhood · ZIP 95228These 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.131
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 100.79

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.3%
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.4,554
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.$94,159
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$111,153
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.24 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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 Poseidon Way 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 91% of homes in Calaveras County
  • Costs more per square foot than 84% of homes in Calaveras County
  • Bigger than 80% of homes in Calaveras County
  • Has a smaller lot than 87% of homes in Calaveras County
  • Newer than 97% of homes in Calaveras County

What homes are worth in Copperopolis 95228

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

This home
$259K$2.1M

This home is worth more than 71% of homes in Copperopolis 95228.

How it measures up in Copperopolis 95228

The dot is this home. The mark in the middle is the typical home in Copperopolis 95228.

Estimated value$677,926
CheaperTypical $532,636Pricier

Pricier than 71% of homes nearby

Price per ft²$314
CheaperTypical $263Pricier

Pricier than 79% of homes nearby

Living area2,161 ft²
SmallerTypical 1,828 ft²Bigger

Bigger than 67% of homes nearby

Lot size0.2 ac
SmallerTypical 0.33 acBigger

Bigger than 29% of homes nearby

Year built2008
OlderTypical 1996Newer

Newer than 92% of homes nearby

How 21 Poseidon Way ranks against every home in each area.
MeasureThis homeCopperopolis 95228Calaveras County
Estimated valuepricier than$677,92671% of homes91% of homes
Price per ft²pricier than$31479% of homes84% of homes
Living areabigger than2,161 ft²67% of homes80% of homes
Lot sizebigger than0.2 ac29% of homes13% of homes
Year builtnewer than200892% of homes97% of homes

About 21 Poseidon Way

How much is 21 Poseidon Way, Copperopolis, CA worth?

The TopHap Estimate for 21 Poseidon Way, Copperopolis, CA is $677,926 as of Oct 21, 2026. The likely range is $535,045 to $820,806. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Poseidon Way, Copperopolis, CA last sell?

21 Poseidon Way, Copperopolis, CA last sold on Nov 25, 2009 for $103,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Poseidon Way, Copperopolis, CA?

21 Poseidon Way, Copperopolis, CA has 3 bedrooms, 2.5 bathrooms, 2,161 square feet of living space and a 0.20-acre lot.

When was 21 Poseidon Way, Copperopolis, CA built?

21 Poseidon Way, Copperopolis, CA was built in 2008, making it 18 years old. It is a modern home. The building has 1 story.

What schools serve 21 Poseidon Way, Copperopolis, CA?

21 Poseidon Way, Copperopolis, CA is assigned to Copperopolis Elementary School (elementary), rated C-; Mark Twain Elementary School (middle), rated D; Bret Harte Union High School (high), rated B-. All sit in Bret Harte Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Poseidon Way, Copperopolis, CA compare to other homes in Copperopolis 95228?

Among the 2,746 homes in Copperopolis 95228, it is worth more than 71% of them ($677,926 against a typical $532,636), its price per square foot is higher than 79% of them ($314 against a typical $263), it is bigger than 67% of them (2,161 ft² against a typical 1,828 ft²), its lot is bigger than 29% of them (0.2 ac against a typical 0.33 ac) and it is newer than 92% of them (2008 against a typical 1996). Measured against all of Calaveras County, it is worth more than 91% 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 Poseidon Way, Copperopolis, CA?

The 2025 property tax bill for 21 Poseidon Way, Copperopolis, CA was $3,632. The county assessed it at $304,962.

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