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Buying a home in Diamond Bar, California

The typical owner-occupied home in Diamond Bar is worth about $902,200, 23% above the California median of $734,700 and 2.7 times the national median of $332,700. Owners pay a median $6,634 a year in property taxes, about 0.74% of their home's value, higher than the California rate of 0.70%. The median household earns $108,281 a year, so the median home costs 8.3 times the median income (7.4 times for California). 77% of occupied homes here are lived in by their owners, and 60% of those owners still have a mortgage.

Diamond Bar at a glance

Diamond Bar California U.S.
Median home value $902,200 $734,700 $332,700
Median property tax paid per year $6,634 $5,124 $3,119
Property tax as a share of value 0.74% 0.70% 0.94%
Median household income $108,281 $99,122 $80,734
Homes lived in by their owners 77% 56% 65%
Owner homes with a mortgage 60% 67% 61%
Median monthly costs, owners with a mortgage $3,149 $2,946 $1,963
Those costs as a share of the owners' income 26.3% 24.8% 21.0%
Median rent $2,521 $2,036 $1,413
Rent as a share of renters' income 38.8% 32.8% 30.6%
Median year homes were built 1980 1976 1980
Vacant homes 5.1% 7.5% 10.1%
Population 53,355 39,287,377 334,922,499

What a typical home costs per month in Diamond Bar

At this week's average 30-year rate of 7.11%, buying the median Diamond Bar home of $902,200 with 20% down costs about $5,788 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $7,436, because the loan is bigger and FHA adds mortgage insurance.

Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $248,040 for the 20%-down payment. That payment is 64% of the median Diamond Bar household income of $108,281; at that income and 20% down, the 28% guideline points to a home of about $394,000.

The median rent here is $2,521 a month, so owning the median home costs about $3,267 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$180,440
Loan amount$721,760
Principal and interest$4,855
Property taxes (0.74% a year)$556
Homeowners insurance (our estimate, 0.5% a year)$376
PMI$0
Total per month$5,788

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3.5% down, 30-year FHA loan
Down payment$31,577
Loan amount$885,859
Principal and interest$5,959
Property taxes (0.74% a year)$556
Homeowners insurance (our estimate, 0.5% a year)$376
FHA mortgage insurance$544
Total per month$7,436

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Questions about home buying in Diamond Bar

What is the median home value in Diamond Bar?

About $902,200 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Diamond Bar?

Homeowners pay a median $6,634 a year, which is about 0.74% of the median home value. Your bill depends on your home's assessed value and local rates.

What income do you need to buy a home in Diamond Bar?

For the median home with 20% down at 7.11%, the payment is about $5,788 a month. Keeping that under 28% of gross income takes about $248,040 a year.

More about Diamond Bar

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data