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Single Family ResidenceResidential
$540,546$460 / 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 91How 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

4278 JEFFERSON ST

RIVERSIDE, CA 92504
3
Beds
1
Baths
1,176 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
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.

Valuation

$541K
$491K low$590K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$490,546
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$392,437
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.9%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$50,000
GENERAL AMERICAN FINANCIAL CO · R · recorded Jul 13, 1993

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,195 (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.$110,912 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$42,093
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$68,819
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$108,738
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$309,690

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.0.15
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Thomas Jefferson Elementary SchoolC
Elementary · Grades KG–6 · 0.1 mi
H
Ramona High SchoolC
High · Grades 9–12 · 0.6 mi
M
Sierra Middle SchoolC
Middle · Grades 7–8 · 0.9 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

4278 Jefferson 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 less than 78% of homes in Ramona - Riverside
  • Costs more per square foot than 90% of homes in Riverside County
  • Smaller than 86% of homes in Riverside County
  • Has a smaller lot than 82% 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
$388K$1.3M

This home is worth more than 25% 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$540,546
CheaperTypical $599,205Pricier

Pricier than 25% of homes nearby

Price per ft²$460
CheaperTypical $415Pricier

Pricier than 70% of homes nearby

Living area1,176 ft²
SmallerTypical 1,414 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.15 ac
SmallerTypical 0.19 acBigger

Bigger than 18% of homes nearby

Year built1950
OlderTypical 1960Newer

Newer than 13% of homes nearby

How 4278 Jefferson St ranks against every home in each area.
MeasureThis homeRamona - RiversideRiverside 92504Riverside County
Estimated valuepricier than$540,54622% of homes25% of homes41% of homes
Price per ft²pricier than$46048% of homes70% of homes90% of homes
Living areabigger than1,176 ft²35% of homes25% of homes14% of homes
Lot sizebigger than0.15 ac20% of homes18% of homes25% of homes
Year builtnewer than195011% of homes13% of homes4% of homes

About 4278 Jefferson St

How much is 4278 Jefferson St, Riverside, CA worth?

The TopHap Estimate for 4278 Jefferson St, Riverside, CA is $540,546 as of Jul 14, 2026. The likely range is $491,040 to $590,052. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4278 Jefferson St, Riverside, CA last sell?

4278 Jefferson St, Riverside, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4278 Jefferson St, Riverside, CA?

4278 Jefferson St, Riverside, CA has 3 bedrooms, 1 bathrooms, 1,176 square feet of living space and a 0.15-acre lot.

When was 4278 Jefferson St, Riverside, CA built?

4278 Jefferson St, Riverside, CA was built in 1950, making it 76 years old. The building has 1 story.

What schools serve 4278 Jefferson St, Riverside, CA?

4278 Jefferson St, Riverside, CA is assigned to Thomas Jefferson Elementary School (elementary), rated C; Ramona High School (high), rated C; Sierra Middle School (middle), rated C. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4278 Jefferson St, Riverside, CA compare to other homes in Riverside 92504?

Among the 13,368 homes in Riverside 92504, it is worth more than 25% of them ($540,546 against a typical $599,205), its price per square foot is higher than 70% of them ($460 against a typical $415), it is bigger than 25% of them (1,176 ft² against a typical 1,414 ft²), its lot is bigger than 18% of them (0.15 ac against a typical 0.19 ac) and it is newer than 13% of them (1950 against a typical 1960). Measured against all of Riverside County, it is worth more than 41% 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 4278 Jefferson St, Riverside, CA?

The 2025 property tax bill for 4278 Jefferson St, Riverside, CA was $1,195. The county assessed it at $110,912.

Closest homes

More homes in Riverside 92504

Assigned schools

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