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Diamond Bar, CA Real Estate & Property Data

Diamond Bar Real Estate Market Trends

Last Updated: September 06, 2025

It is crucial to have accurate and comprehensive real estate data to gain insights into the city of Diamond Bar, CA 91765. ATTOM offers up to date Diamond Bar real estate data that is refreshed daily. Current market trends reveal that in the past year, 533 residential properties have been sold in Diamond Bar, CA, with a median home price of $1,056,750. The average square footage of these properties is 2,196 sq ft, and the effective property tax rate is 0.73%. Additionally, there have been 4 foreclosures in the area in the past month. ATTOM is your one-stop-shop for detailed property data in Diamond Bar, CA, providing you with the real estate information you need.

Diamond Bar Real Estate Market Trends

Get property data for any address in Diamond Bar, CA or the country:

Total Residential Properties 15,105

Total Commercial Properties 343

Avg. Home Age (Single Family Home) 48 Years

Avg. Square Feet (Single Family Home) 2,196

Total 2025 Residential Sales (year-to-date) 226

% of Homes Seriously Underwater (Q3 2025) 0.46%

Total 2024 Residential Sales 495

% of Equity Rich Homes (Q3 2025) 59.4%

Effective 2024 Property Tax 0.73%

Total Foreclosure Filings (year-to-date) 18

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Diamond Bar, CA 91765 Real Estate Overview

There were 533 residential properties sold in the past year in Diamond Bar, CA 91765. The median home value in Diamond Bar, CA 91765 is $1,011,750. There are a total of 15,105 residential properties in the 91765.

Median Sales Price i

$1,056,750

(Jun 2025)

-8.3%

year-over-year

y-o-y

June '25 Jun '25 $1,056,750
May '25 May '25 $1,160,000
April '25 Apr '25 $1,226,000
March '25 Mar '25 $1,100,000
February '25 Feb '25 $1,157,000
January '25 Jan '25 $896,250
December '24 Dec '24 $1,321,000
November '24 Nov '24 $1,050,000
October '24 Oct '24 $1,070,000
September '24 Sep '24 $1,194,000
August '24 Aug '24 $1,216,500
July '24 Jul '24 $1,190,000

Median Down Payment i

$355,000

(Jun 2025)

+17.7%

year-over-year

y-o-y

June '25 Jun '25 $355,000
May '25 May '25 $410,000
April '25 Apr '25 $425,000
March '25 Mar '25 $400,000
February '25 Feb '25 $422,500
January '25 Jan '25 $296,500
December '24 Dec '24 $528,400
November '24 Nov '24 $300,250
October '24 Oct '24 $320,400
September '24 Sep '24 $414,000
August '24 Aug '24 $340,450
July '24 Jul '24 $550,000

Number of Homes Sold i

38

(Jun 2025)

-26.9%

year-over-year

y-o-y

June '25 Jun '25 38
May '25 May '25 43
April '25 Apr '25 48
March '25 Mar '25 33
February '25 Feb '25 33
January '25 Jan '25 31
December '24 Dec '24 36
November '24 Nov '24 35
October '24 Oct '24 43
September '24 Sep '24 36
August '24 Aug '24 54
July '24 Jul '24 51

Number of Purchase Loans i

28

(Jun 2025)

-34.9%

year-over-year

y-o-y

June '25 Jun '25 28
May '25 May '25 29
April '25 Apr '25 31
March '25 Mar '25 26
February '25 Feb '25 22
January '25 Jan '25 17
December '24 Dec '24 21
November '24 Nov '24 28
October '24 Oct '24 35
September '24 Sep '24 30
August '24 Aug '24 33
July '24 Jul '24 35

Number of REFI Loans i

21

(Jun 2025)

+200%

year-over-year

y-o-y

June '25 Jun '25 21
May '25 May '25 20
April '25 Apr '25 32
March '25 Mar '25 18
February '25 Feb '25 14
January '25 Jan '25 17
December '24 Dec '24 25
November '24 Nov '24 14
October '24 Oct '24 26
September '24 Sep '24 26
August '24 Aug '24 30
July '24 Jul '24 22

Number of HELOC Loans i

14

(Jun 2025)

year-over-year

y-o-y

June '25 Jun '25 14
May '25 May '25 15
April '25 Apr '25 13
March '25 Mar '25 14
February '25 Feb '25 11
January '25 Jan '25 6
December '24 Dec '24 8
November '24 Nov '24 12
October '24 Oct '24 17
September '24 Sep '24 12
August '24 Aug '24 11
July '24 Jul '24 15

Diamond Bar, CA 91765 Real Estate Market Overview

Last 30 days

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Diamond Bar, CA 91765 Foreclosure Activity

There were a total of 4 Diamond Bar, CA 91765 properties with a foreclosure filing in June 2025.

Total Foreclosure Filings i

4

(Jun 2025)

-20%

year-over-year

y-o-y

June '25 Jun '25 4
May '25 May '25 4
April '25 Apr '25 4
March '25 Mar '25 2
February '25 Feb '25 2
January '25 Jan '25 2
December '24 Dec '24 5
November '24 Nov '24 6
October '24 Oct '24 7
September '24 Sep '24 5
August '24 Aug '24 4
July '24 Jul '24 3

Foreclosure Starts i

4

(Jun 2025)

-20%

year-over-year

y-o-y

June '25 Jun '25 4
May '25 May '25 4
April '25 Apr '25 3
March '25 Mar '25 1
February '25 Feb '25 2
January '25 Jan '25 N/A
December '24 Dec '24 3
November '24 Nov '24 5
October '24 Oct '24 6
September '24 Sep '24 3
August '24 Aug '24 3
July '24 Jul '24 2

Completed Foreclosures (REOs) i

June '25 Jun '25 N/A
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 1
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 N/A
November '24 Nov '24 N/A
October '24 Oct '24 N/A
September '24 Sep '24 N/A
August '24 Aug '24 N/A
July '24 Jul '24 N/A

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