Diamond Bar
Property Data

Los Angeles County, California

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Los Angeles County

ZIP Codesby Total Population

Loading map...
Total Population
44,50244,502

DistributionTotal Population

No data available

Demographics

Total Population

44,502

Median Age

46.0

Population Under 18

18.5%

Population 65+

21.9%

Total Households

15,233

Average Household Size

2.91

Diamond Bar, CA housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Diamond Bar, CA
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
9176544,502$105,565$2,48677.5%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Diamond Bar, CA. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records417Recorded345Model estimateRange: 310–400-17.3%
Average recorded sale amount$1,063,922Recorded$1,229,732Model estimate+15.6%

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Diamond Bar, CA
MeasureDiamond Bar, CALos Angeles County, CA
Median recorded sale amount$987,500$898,000
Recorded amount, 10th percentile$450,000$488,000
Recorded amount, 90th percentile$1,529,600$2,290,000
Average recorded floor area (sq ft)2,1172,212
Average recorded bedrooms3.53.4
Average recorded bathrooms2.72.5
Median year built19791957
Condominium share of properties25.4%13.7%

Diamond Bar, CA: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 27, 2026. Calculated . Published . Dataset last refreshed: .

Los Angeles County, CA: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 27, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

Parcel sale records
Oct 1, 2025–Sep 30, 2026
393
Model estimateHistorical error-adjusted range: 372–407.
Median sale amount
September 2026
$1,231,854
Model estimateHistorical error-adjusted range: $1,257,477–$1,618,155.
Median-amount change
September 2026 versus September 2025
+27.3%
Model estimateHistorical error-adjusted range: +29.9%–+67.2%.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: June 2026; not a verified completeness date.

Properties in Diamond Bar

Showing page 178 of properties

23727 Monument Canyon Drive

Diamond Bar, CA 91765

23727 Palomino Drive

Diamond Bar, CA 91765

23727 Prospect Valley Drive

Diamond Bar, CA 91765

23727 Silver Spray Drive

Diamond Bar, CA 91765

23727 Sunset Crossing Road

Diamond Bar, CA 91765

23728 Decorah Road

Diamond Bar, CA 91765

23728 Monument Canyon Drive

Diamond Bar, CA 91765

23728 Ridge Line Road

Diamond Bar, CA 91765

2373 Indian Creek Road

Diamond Bar, CA 91765

23730 Canyon Vista Court

Diamond Bar, CA 91765

23730 Falcons View Drive

Diamond Bar, CA 91765

23730 Gold Nugget Avenue

Diamond Bar, CA 91765

23730 Little Quail Avenue

Diamond Bar, CA 91765

23730 Sunset Crossing Road

Diamond Bar, CA 91765

23731 Country View Drive

Diamond Bar, CA 91765

23731 Decorah Road

Diamond Bar, CA 91765

23731 Gold Rush Drive

Diamond Bar, CA 91765

23731 Highland Valley Road

Diamond Bar, CA 91765

23732 Prospect Valley Drive

Diamond Bar, CA 91765

23733 Highland Valley Road

Diamond Bar, CA 91765

23733 Sunset Crossing Road

Diamond Bar, CA 91765

23734 Decorah Road

Diamond Bar, CA 91765

23734 Meadow Falls Drive

Diamond Bar, CA 91765

23734 Palomino Drive

Diamond Bar, CA 91765

23734 Silver Spray Drive

Diamond Bar, CA 91765

23735 Canyon Vista Court

Diamond Bar, CA 91765

23735 Gold Nugget Avenue

Diamond Bar, CA 91765

23735 Highland Valley Road

Diamond Bar, CA 91765

23735 Little Quail Avenue

Diamond Bar, CA 91765

23735 Meadow Falls Drive

Diamond Bar, CA 91765

23735 Palomino Drive

Diamond Bar, CA 91765

23735 Prospect Valley Drive

Diamond Bar, CA 91765

23735 Ridge Line Road

Diamond Bar, CA 91765

23735 Silver Spray Drive

Diamond Bar, CA 91765

23736 Country View Drive

Diamond Bar, CA 91765

23736 Monument Canyon Drive

Diamond Bar, CA 91765

23737 Country View Drive

Diamond Bar, CA 91765

23737 Decorah Road

Diamond Bar, CA 91765

23737 Gold Rush Drive

Diamond Bar, CA 91765

23737 Gold Rush Drive

Diamond Bar, CA 91765

23737 Golden Springs Drive

Diamond Bar, CA 91765

23737 Highland Valley Road

Diamond Bar, CA 91765

23738 Gold Rush Drive

Diamond Bar, CA 91765

23738 Sunset Crossing Road

Diamond Bar, CA 91765

23739 Decorah Road

Diamond Bar, CA 91765

23739 Sunset Crossing Road

Diamond Bar, CA 91765

23740 Decorah Road

Diamond Bar, CA 91765

23740 Gold Nugget Avenue

Diamond Bar, CA 91765

23740 Little Quail Avenue

Diamond Bar, CA 91765

23740 Silver Spray Drive

Diamond Bar, CA 91765

Access Los Angeles County, CA Property Data Through Our Enterprise API

Get instant access to comprehensive county assessors-based property data with your free API key

Need Bulk Data?

Email us at hello@realie.ai