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Single Family ResidenceResidential
$680,782$298 / 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 96How 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

170 ALTON CT

CALIMESA, CA 92320
4
Beds
2.5
Baths
2,285 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.
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$681K
$656K low$706K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,991 (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.$254,097 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$58,878
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$195,219
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$249,116
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$579,870

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyRIVERSIDE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1988
Lot (acres)The size of the land the home sits on, from county records.0.56
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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
Calimesa Elementary SchoolC-
Elementary · Grades KG–5 · 0.5 mi
M
Mesa View Middle SchoolC+
Middle · Grades 6–8 · 1.6 mi
H
Yucaipa High SchoolA
High · Grades 9–12 · 3.6 mi

District: Yucaipa-Calimesa Joint Unified School District

Neighborhood · ZIP 92320These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.452

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.11,115
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.938 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,404
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,032
Average tempThe average temperature here across a full year.62°F
Annual precipHow much rain and melted snow falls here in a typical year.17 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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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

170 Alton Ct 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 Calimesa 92320
  • Bigger than 75% of homes in Calimesa 92320
  • Has a bigger lot than 77% of homes in Riverside County

What homes are worth in Calimesa 92320

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

This home
$333K$887K

This home is worth more than 89% of homes in Calimesa 92320.

How it measures up in Calimesa 92320

The dot is this home. The mark in the middle is the typical home in Calimesa 92320.

Estimated value$680,782
CheaperTypical $551,316Pricier

Pricier than 89% of homes nearby

Price per ft²$298
CheaperTypical $297Pricier

Pricier than 50% of homes nearby

Living area2,285 ft²
SmallerTypical 1,736 ft²Bigger

Bigger than 75% of homes nearby

Lot size0.56 ac
SmallerTypical 0.24 acBigger

Bigger than 69% of homes nearby

Year built1987
OlderTypical 1987Newer

Newer than 50% of homes nearby

How 170 Alton Ct ranks against every home in each area.
MeasureThis homeCalimesa 92320Riverside County
Estimated valuepricier than$680,78289% of homes68% of homes
Price per ft²pricier than$29850% of homes43% of homes
Living areabigger than2,285 ft²75% of homes70% of homes
Lot sizebigger than0.56 ac69% of homes77% of homes
Year builtnewer than198750% of homes40% of homes

About 170 Alton Ct

How much is 170 Alton Ct, Calimesa, CA worth?

The TopHap Estimate for 170 Alton Ct, Calimesa, CA is $680,782 as of Aug 30, 2026. The likely range is $655,911 to $705,653. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 170 Alton Ct, Calimesa, CA last sell?

170 Alton Ct, Calimesa, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 170 Alton Ct, Calimesa, CA?

170 Alton Ct, Calimesa, CA has 4 bedrooms, 2.5 bathrooms, 2,285 square feet of living space and a 0.56-acre lot.

When was 170 Alton Ct, Calimesa, CA built?

170 Alton Ct, Calimesa, CA was built in 1987, making it 39 years old. The building has 1 story.

What schools serve 170 Alton Ct, Calimesa, CA?

170 Alton Ct, Calimesa, CA is assigned to Calimesa Elementary School (elementary), rated C-; Mesa View Middle School (middle), rated C+; Yucaipa High School (high), rated A. All sit in Yucaipa-Calimesa Joint Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 170 Alton Ct, Calimesa, CA compare to other homes in Calimesa 92320?

Among the 4,325 homes in Calimesa 92320, it is worth more than 89% of them ($680,782 against a typical $551,316), its price per square foot is higher than 50% of them ($298 against a typical $297), it is bigger than 75% of them (2,285 ft² against a typical 1,736 ft²), its lot is bigger than 69% of them (0.56 ac against a typical 0.24 ac) and it is newer than 50% of them (1987 against a typical 1987). Measured against all of Riverside County, it is worth more than 68% 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 170 Alton Ct, Calimesa, CA?

The 2025 property tax bill for 170 Alton Ct, Calimesa, CA was $2,991. The county assessed it at $254,097.

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