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

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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 238 of properties

3067 Windmill Drive

Diamond Bar, CA 91765

3068 Windmill Drive

Diamond Bar, CA 91765

3069 Castle Rock Road

Diamond Bar, CA 91765

307 Willapa Lane

Diamond Bar, CA 91765

3070 Castle Rock Road

Diamond Bar, CA 91765

3073 Crooked Creek Drive

Diamond Bar, CA 91765

3075 Castle Rock Road

Diamond Bar, CA 91765

3076 Castle Rock Road

Diamond Bar, CA 91765

3077 Crooked Creek Drive

Diamond Bar, CA 91765

3078 Windmill Drive

Diamond Bar, CA 91765

3079 Windmill Drive

Diamond Bar, CA 91765

308 Briar Creek Road

Diamond Bar, CA 91765

308 Cottonwood Cove Drive

Diamond Bar, CA 91765

308 South Palo Cedro Drive

Diamond Bar, CA 91765

308 South Rock River Road

Diamond Bar, CA 91765

308 Torito Lane

Diamond Bar, CA 91765

308 Willapa Lane

Diamond Bar, CA 91765

3087 Windmill Drive

Diamond Bar, CA 91765

3088 Windmill Drive

Diamond Bar, CA 91765

309 North Palo Cedro Drive

Diamond Bar, CA 91765

309 North Pintado Drive

Diamond Bar, CA 91765

309 South Palo Cedro Drive

Diamond Bar, CA 91765

3098 Windmill Drive

Diamond Bar, CA 91765

3099 Windmill Drive

Diamond Bar, CA 91765

310 Ballena Drive

Diamond Bar, CA 91765

310 Eagle Nest Drive

Diamond Bar, CA 91765

310 El Encino Drive

Diamond Bar, CA 91765

310 South Palo Cedro Drive

Diamond Bar, CA 91765

310 Torito Lane

Diamond Bar, CA 91765

310 Willapa Lane

Diamond Bar, CA 91765

3100 Fallow Field Drive

Diamond Bar, CA 91765

3100 South Ridge Point Drive

Diamond Bar, CA 91765

3101 Crooked Creek Drive

Diamond Bar, CA 91765

3101 Marigold Circle

Diamond Bar, CA 91765

3101 South Ridge Point Drive

Diamond Bar, CA 91765

3101 Steeplechase Lane

Diamond Bar, CA 91765

3102 Castle Rock Road

Diamond Bar, CA 91765

3102 Cherrydale Drive

Diamond Bar, CA 91765

3102 Marigold Circle

Diamond Bar, CA 91765

3103 Cherrydale Drive

Diamond Bar, CA 91765

3103 South Ridge Point Drive

Diamond Bar, CA 91765

3105 Fallow Field Drive

Diamond Bar, CA 91765

3105 Marigold Circle

Diamond Bar, CA 91765

3106 Cherrydale Drive

Diamond Bar, CA 91765

3106 Crooked Creek Drive

Diamond Bar, CA 91765

3106 Fallow Field Drive

Diamond Bar, CA 91765

3106 Marigold Circle

Diamond Bar, CA 91765

3107 Crooked Creek Drive

Diamond Bar, CA 91765

3107 Marigold Circle

Diamond Bar, CA 91765

3107 South Ridge Point Drive

Diamond Bar, CA 91765

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