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Single Family ResidenceResidential
$457,126$378 / 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 84How 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

3861 SAN MARCOS AVE

RIVERSIDE, CA 92504
3
Beds
1.8
Baths
1,208 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$457K
$384K low$531K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,522 (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.$232,883 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,173
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$170,710
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$228,317
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$373,320

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyRIVERSIDE
Lot (acres)The size of the land the home sits on, from county records.0.17
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.Rock / Gravel
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(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.

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

H
Ramona High SchoolC
High · Grades 9–12 · 0.2 mi
M
Sierra Middle SchoolC
Middle · Grades 7–8 · 0.7 mi
E
Thomas Jefferson Elementary SchoolC
Elementary · Grades KG–6 · 0.7 mi

District: Riverside Unified School District

Neighborhood · ZIP 92504These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.307

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.4%
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.56,759
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,438 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,931
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,916
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.11 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

3861 San Marcos Ave 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 less than 88% of homes in Riverside 92504
  • Costs less per square foot than 74% of homes in Ramona - Riverside
  • Smaller than 84% of homes in Riverside County
  • Has a smaller lot than 71% of homes in Riverside 92504
  • Older than 96% of homes in Riverside County

What homes are worth in Riverside 92504

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

This home
$380K$1.5M

This home is worth more than 12% of homes in Riverside 92504.

How it measures up in Riverside 92504

The dot is this home. The mark in the middle is the typical home in Riverside 92504.

Estimated value$457,126
CheaperTypical $578,765Pricier

Pricier than 12% of homes nearby

Price per ft²$378
CheaperTypical $403Pricier

Pricier than 39% of homes nearby

Living area1,208 ft²
SmallerTypical 1,416 ft²Bigger

Bigger than 28% of homes nearby

Lot size0.17 ac
SmallerTypical 0.19 acBigger

Bigger than 29% of homes nearby

Year built1952
OlderTypical 1960Newer

Newer than 18% of homes nearby

How 3861 San Marcos Ave ranks against every home in each area.
MeasureThis homeRamona - RiversideRiverside 92504Riverside County
Estimated valuepricier than$457,12615% of homes12% of homes23% of homes
Price per ft²pricier than$37826% of homes39% of homes73% of homes
Living areabigger than1,208 ft²39% of homes28% of homes16% of homes
Lot sizebigger than0.17 ac36% of homes29% of homes30% of homes
Year builtnewer than195216% of homes18% of homes4% of homes

About 3861 San Marcos Ave

How much is 3861 San Marcos Ave, Riverside, CA worth?

The TopHap Estimate for 3861 San Marcos Ave, Riverside, CA is $457,126 as of Sep 24, 2026. The likely range is $383,530 to $530,722. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3861 San Marcos Ave, Riverside, CA last sell?

3861 San Marcos Ave, Riverside, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3861 San Marcos Ave, Riverside, CA?

3861 San Marcos Ave, Riverside, CA has 3 bedrooms, 1.8 bathrooms, 1,208 square feet of living space and a 0.17-acre lot.

When was 3861 San Marcos Ave, Riverside, CA built?

3861 San Marcos Ave, Riverside, CA was built in 1952, making it 74 years old. The building has 1 story.

What schools serve 3861 San Marcos Ave, Riverside, CA?

3861 San Marcos Ave, Riverside, CA is assigned to Ramona High School (high), rated C; Sierra Middle School (middle), rated C; Thomas Jefferson Elementary School (elementary), rated C. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3861 San Marcos Ave, Riverside, CA compare to other homes in Riverside 92504?

Among the 13,364 homes in Riverside 92504, it is worth more than 12% of them ($457,126 against a typical $578,765), its price per square foot is higher than 39% of them ($378 against a typical $403), it is bigger than 28% of them (1,208 ft² against a typical 1,416 ft²), its lot is bigger than 29% of them (0.17 ac against a typical 0.19 ac) and it is newer than 18% of them (1952 against a typical 1960). Measured against all of Riverside County, it is worth more than 23% 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 3861 San Marcos Ave, Riverside, CA?

The 2025 property tax bill for 3861 San Marcos Ave, Riverside, CA was $2,522. The county assessed it at $232,883.

More homes on San Marcos Ave

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Assigned schools

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