Cost of Living in Diamond Bar, CA

With a cost of living index of 185, Diamond Bar, CA is one of the most expensive cities in the United States. Living here is 85% more expensive than the national average and 41% above the California state average of 144. With a population of 53,750, Diamond Bar is a mid-sized community that balances access to services with a more manageable cost of living compared to larger metros.

Housing costs are the biggest factor in Diamond Bar's cost of living. The median monthly rent is $2,422 (84% above the US median of $1,319), and the median home value sits at $867,000 (184% above the national median of $304,900). At current prices, the median home costs roughly 8.1x the median household income — a challenging ratio that puts homeownership out of reach for many residents.

The median household income in Diamond Bar is $106,602, which is 42% higher than the national median of $75,149. Residents spend roughly 27% of household income on rent. This is near the 30% threshold that financial experts generally consider the upper limit of affordability. While incomes are above average, they do not fully offset the higher cost of living.

Climate is another factor for anyone considering a move to Diamond Bar. The area sees an average annual temperature of 66.1°F, with summers averaging 77°F and winters around 56°F. Annual rainfall totals 10 inches spread over roughly 35 days. The mild climate is a draw for many residents and keeps utility costs moderate year-round.

Everyday prices in the Los Angeles-Long Beach-Anaheim, CA (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 6 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.