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Single Family ResidenceResidential
$882,642$2,006 / 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 85How 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

303 E RIVER AVE

ORANGE, CA 92866
2
Beds
1
Baths
440 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1946
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$883K
$753K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,483 (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.$281,607 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$123,206
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$158,401
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$276,086

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.42
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
37
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
38
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
16
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
88
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 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.1 percent flood zone

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
CountyORANGE
Lot (acres)The size of the land the home sits on, from county records.0.13
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Palmyra Elementary SchoolB+
Elementary · Grades KG–6 · 0.8 mi
H
Orange High SchoolC+
High · Grades 9–12 · 1.2 mi
M
Yorba Middle SchoolB
Middle · Grades 6–8 · 1.7 mi

District: Orange Unified School District

Neighborhood · ZIP 92866These 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.141
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.276

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.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.16,324
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,503 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,881
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,660
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.75%

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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

303 E River 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 77% of homes in Orange 92866
  • Among the highest price per square foot in Orange 92866
  • Among the smallest homes in Orange 92866
  • Has a smaller lot than 93% of homes in Orange 92866
  • Older than 97% of homes in Orange County

What homes are worth in Orange 92866

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

This home
$442K$1.7M

This home is worth more than 23% of homes in Orange 92866.

How it measures up in Orange 92866

The dot is this home. The mark in the middle is the typical home in Orange 92866.

Estimated value$882,642
CheaperTypical $1,054,845Pricier

Pricier than 23% of homes nearby

Price per ft²$2006
CheaperTypical $724Pricier

Pricier than almost all homes nearby

Living area440 ft²
SmallerTypical 1,529 ft²Bigger

Smaller than almost all homes nearby

Lot size0.13 ac
SmallerTypical 0.16 acBigger

Bigger than 7% of homes nearby

Year built1946
OlderTypical 1956Newer

Newer than 34% of homes nearby

How 303 E River Ave ranks against every home in each area.
MeasureThis homeOrange 92866Orange County
Estimated valuepricier than$882,64223% of homes29% of homes
Price per ft²pricier than$2006almost all homesalmost all homes
Living areabigger than440 ft²almost no homesalmost no homes
Lot sizebigger than0.13 ac7% of homes29% of homes
Year builtnewer than194634% of homes3% of homes

About 303 E River Ave

How much is 303 E River Ave, Orange, CA worth?

The TopHap Estimate for 303 E River Ave, Orange, CA is $882,642 as of Sep 24, 2026. The likely range is $752,628 to $1,012,656. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 303 E River Ave, Orange, CA last sell?

303 E River Ave, Orange, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 303 E River Ave, Orange, CA?

303 E River Ave, Orange, CA has 2 bedrooms, 1 bathrooms, 440 square feet of living space and a 0.13-acre lot.

When was 303 E River Ave, Orange, CA built?

303 E River Ave, Orange, CA was built in 1946, making it 80 years old. The building has 1 story.

What schools serve 303 E River Ave, Orange, CA?

303 E River Ave, Orange, CA is assigned to Palmyra Elementary School (elementary), rated B+; Orange High School (high), rated C+; Yorba Middle School (middle), rated B. All sit in Orange Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 303 E River Ave, Orange, CA compare to other homes in Orange 92866?

Among the 3,388 homes in Orange 92866, it is worth more than 23% of them ($882,642 against a typical $1,054,845), its price per square foot is higher than almost all of them ($2006 against a typical $724), it is bigger than almost none of them (440 ft² against a typical 1,529 ft²), its lot is bigger than 7% of them (0.13 ac against a typical 0.16 ac) and it is newer than 34% of them (1946 against a typical 1956). Measured against all of Orange County, it is worth more than 29% 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 303 E River Ave, Orange, CA?

The 2025 property tax bill for 303 E River Ave, Orange, CA was $3,483. The county assessed it at $281,607.

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Assigned schools

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