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Duplex (2 Units, Any Combination)Residential
$508,157$215 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $270,000 on Sep 26, 2018

18391 ALDER ST

HESPERIA, CA 92345
5
Beds
4
Baths
2,361 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.
0.45 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$508K
$473K low$543K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$270,000 · Sep 26, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,377 (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.$307,215 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$51,203
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$256,012

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Modern
CountySAN BERNARDINO
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.1979
Lot (acres)The size of the land the home sits on, from county records.0.45
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Builtup (layered Asphalt)
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 79 ft²

Transaction History(9)

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
Carmel Elementary SchoolD+
Elementary · Grades KG–6 · 3.0 mi
H
Sultana High SchoolC
High · Grades 9–12 · 3.8 mi
M
Ranchero Middle SchoolD-
Middle · Grades 7–8 · 5.5 mi

District: Hesperia Unified School District

Neighborhood · ZIP 92345These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.347

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.7.4%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.89,476
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.799 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$61,309
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,179
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

18391 Alder 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 79% of homes in Hesperia 92345
  • Costs less per square foot than 89% of homes in Hesperia 92345
  • Bigger than 87% of homes in Hesperia 92345
  • Has a bigger lot than 81% of homes in San Bernardino County
  • Older than 76% of homes in Hesperia 92345

What homes are worth in Hesperia 92345

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

This home
$290K$650K

This home is worth more than 79% of homes in Hesperia 92345.

How it measures up in Hesperia 92345

The dot is this home. The mark in the middle is the typical home in Hesperia 92345.

Estimated value$508,157
CheaperTypical $436,680Pricier

Pricier than 79% of homes nearby

Price per ft²$215
CheaperTypical $266Pricier

Pricier than 11% of homes nearby

Living area2,361 ft²
SmallerTypical 1,657 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.45 ac
SmallerTypical 0.46 acBigger

Bigger than 41% of homes nearby

Year built1978
OlderTypical 1987Newer

Newer than 24% of homes nearby

How 18391 Alder St ranks against every home in each area.
MeasureThis homeHesperia 92345San Bernardino County
Estimated valuepricier than$508,15779% of homes45% of homes
Price per ft²pricier than$21511% of homes11% of homes
Living areabigger than2,361 ft²87% of homes82% of homes
Lot sizebigger than0.45 ac41% of homes81% of homes
Year builtnewer than197824% of homes40% of homes

About 18391 Alder St

How much is 18391 Alder St, Hesperia, CA worth?

The TopHap Estimate for 18391 Alder St, Hesperia, CA is $508,157 as of Jul 14, 2026. The likely range is $473,155 to $543,159. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18391 Alder St, Hesperia, CA last sell?

18391 Alder St, Hesperia, CA last sold on Sep 26, 2018 for $270,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 18391 Alder St, Hesperia, CA?

18391 Alder St, Hesperia, CA has 5 bedrooms, 4 bathrooms, 2,361 square feet of living space and a 0.45-acre lot.

When was 18391 Alder St, Hesperia, CA built?

18391 Alder St, Hesperia, CA was built in 1978, making it 48 years old. It is a modern home. The building has 1 story.

What schools serve 18391 Alder St, Hesperia, CA?

18391 Alder St, Hesperia, CA is assigned to Carmel Elementary School (elementary), rated D+; Sultana High School (high), rated C; Ranchero Middle School (middle), rated D-. All sit in Hesperia Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18391 Alder St, Hesperia, CA compare to other homes in Hesperia 92345?

Among the 23,573 homes in Hesperia 92345, it is worth more than 79% of them ($508,157 against a typical $436,680), its price per square foot is higher than 11% of them ($215 against a typical $266), it is bigger than 87% of them (2,361 ft² against a typical 1,657 ft²), its lot is bigger than 41% of them (0.45 ac against a typical 0.46 ac) and it is newer than 24% of them (1978 against a typical 1987). Measured against all of San Bernardino County, it is worth more than 45% 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 18391 Alder St, Hesperia, CA?

The 2025 property tax bill for 18391 Alder St, Hesperia, CA was $3,377. The county assessed it at $307,215.

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