Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$268,002$227 / 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 Aug 30, 2026
Last sold for $187,177 on Dec 7, 2023

4511 ONYX AVE

KLAMATH FALLS, OR 97603
3
Beds
2
Baths
1,182 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
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

$268K
$250K low$286K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$187,177 · Dec 7, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,643 (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.$136,500 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$132,530
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$269,140

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.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
CountyKLAMATH
Lot (acres)The size of the land the home sits on, from county records.0.25
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Floor/Wall Furnace
CoolingThe type of cooling or air conditioning in the home.Window A/C
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.ShedPatio · 392 ft²

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.

Foreclosure Filings(2)

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

H
Mazama High SchoolC+
High · Grades 9–12 · 0.2 mi
E
Peterson Elementary SchoolC-
Elementary · Grades KG–6 · 0.5 mi
M
Brixner Junior High SchoolD-
Middle · Grades 7–8 · 1.1 mi

District: Klamath County School District

Neighborhood · ZIP 97603These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.331

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.33,820
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.98 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,503
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$75,677
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.16 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

Owner Tools

Do you own this home?
Claim this home

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

4511 Onyx 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 66% of homes in Klamath Falls 97603
  • Costs more per square foot than 69% of homes in Klamath Falls 97603
  • Smaller than 67% of homes in Klamath Falls 97603
  • Older than 76% of homes in Klamath Falls 97603

What homes are worth in Klamath Falls 97603

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

This home
$132K$657K

This home is worth more than 34% of homes in Klamath Falls 97603.

How it measures up in Klamath Falls 97603

The dot is this home. The mark in the middle is the typical home in Klamath Falls 97603.

Estimated value$268,002
CheaperTypical $311,151Pricier

Pricier than 34% of homes nearby

Price per ft²$227
CheaperTypical $209Pricier

Pricier than 69% of homes nearby

Living area1,182 ft²
SmallerTypical 1,404 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.25 ac
SmallerTypical 0.27 acBigger

Bigger than 46% of homes nearby

Year built1958
OlderTypical 1974Newer

Newer than 24% of homes nearby

How 4511 Onyx Ave ranks against every home in each area.
MeasureThis homeKlamath Falls 97603Klamath County
Estimated valuepricier than$268,00234% of homes45% of homes
Price per ft²pricier than$22769% of homes63% of homes
Living areabigger than1,182 ft²33% of homes41% of homes
Lot sizebigger than0.25 ac46% of homes46% of homes
Year builtnewer than195824% of homes28% of homes

About 4511 Onyx Ave

How much is 4511 Onyx Ave, Klamath Falls, OR worth?

The TopHap Estimate for 4511 Onyx Ave, Klamath Falls, OR is $268,002 as of Aug 30, 2026. The likely range is $249,551 to $286,453. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4511 Onyx Ave, Klamath Falls, OR last sell?

4511 Onyx Ave, Klamath Falls, OR last sold on Dec 7, 2023 for $187,177, according to the county's recorded deed.

How big is 4511 Onyx Ave, Klamath Falls, OR?

4511 Onyx Ave, Klamath Falls, OR has 3 bedrooms, 2 bathrooms, 1,182 square feet of living space and a 0.25-acre lot.

When was 4511 Onyx Ave, Klamath Falls, OR built?

4511 Onyx Ave, Klamath Falls, OR was built in 1958, making it 68 years old. The building has 1 story.

What schools serve 4511 Onyx Ave, Klamath Falls, OR?

4511 Onyx Ave, Klamath Falls, OR is assigned to Mazama High School (high), rated C+; Peterson Elementary School (elementary), rated C-; Brixner Junior High School (middle), rated D-. All sit in Klamath County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4511 Onyx Ave, Klamath Falls, OR compare to other homes in Klamath Falls 97603?

Among the 11,898 homes in Klamath Falls 97603, it is worth more than 34% of them ($268,002 against a typical $311,151), its price per square foot is higher than 69% of them ($227 against a typical $209), it is bigger than 33% of them (1,182 ft² against a typical 1,404 ft²), its lot is bigger than 46% of them (0.25 ac against a typical 0.27 ac) and it is newer than 24% of them (1958 against a typical 1974). Measured against all of Klamath 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 4511 Onyx Ave, Klamath Falls, OR?

The 2025 property tax bill for 4511 Onyx Ave, Klamath Falls, OR was $1,643. The county assessed it at $136,500.

More homes on Onyx Ave

Closest homes

More homes in Klamath Falls 97603

Assigned schools

Explore the area

See this home in context

Open 4511 Onyx Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map