Diamond Bar, CA

Very High · 204

California · Population 53,750 · Updated March 2026

$2,422
Median Rent / Month
$106,602
Median Income
$867,000
Median Home Value
$2,268
Owner Costs / Month

Affordability

How far your income goes in Diamond Bar

27.3%
Rent-to-Income Ratio
Moderate
Rent takes 25-35% of median income — moderate affordability.

Tax Burden in California

State-level tax rates that affect your costs

13.3%
Income Tax (Top Rate)
7.25%
Sales Tax
0.71%
Property Tax Rate

Estimated Annual Costs

$29,064
Annual Rent
$14,178
State Income Tax
$6,156
Property Tax (est.)

Cost of Living Overview

Diamond Bar has a significantly higher cost of living than most US cities, driven largely by premium housing costs. With a cost index of 204 (where 100 equals the national median), Diamond Bar residents can expect to pay median rent of $2,422/month while earning a median household income of $106,602/year.

The median home value in Diamond Bar, CA is $867,000, with typical monthly owner costs around $2,268 including mortgage, insurance, and taxes. With a rent-to-income ratio of 27.3%, Diamond Bar falls within the generally affordable range, though it's approaching the 30% burden threshold.

California's top income tax rate of 13.3% is among the highest in the nation, adding to the overall cost burden. Combined with a 7.25% sales tax rate and 0.71% effective property tax rate, the overall tax environment is a factor in the total cost of living in Diamond Bar.

Frequently Asked Questions

Common questions about living costs in Diamond Bar

What is the cost of living in Diamond Bar, CA?
The cost of living index in Diamond Bar, CA is 204 (US average = 100). Median monthly rent is $2,422, median household income is $106,602/year, and the median home value is $867,000.
Is Diamond Bar, CA affordable?
No, Diamond Bar is more expensive than the national average with a cost index of 204. The rent-to-income ratio is 27.3%—below the 30%% threshold considered affordable by HUD.
What is the average rent in Diamond Bar, CA?
The median gross rent in Diamond Bar, CA is $2,422 per month according to the US Census Bureau ACS 2023 data. Annual rent costs approximately $29,064.
What is the median household income in Diamond Bar?
The median household income in Diamond Bar, CA is $106,602 per year. This compares to the national median of approximately $80,000.
What are the taxes like in California?
California has a top income tax rate of 13.3%, a sales tax of 7.25%, and an effective property tax rate of 0.71%.