Population & Demographics
Diamond Bar, CA
Diamond Bar is home to 53,355 people. Explore its demographics, housing, and economy — plus how its 24,817 resident workers commute each day.
53,355 residents
Median age 45.7 · U.S. Census Bureau, ACS 5-Year (2024).
Diamond Bar population & demographics
Who lives in Diamond Bar — population, age, housing, and income, from the U.S. Census Bureau.
Source: U.S. Census Bureau, American Community Survey (ACS) 2024 5-Year Estimates. Values shown as “—” are suppressed or unavailable for this place.
Race & ethnicity in Diamond Bar
How Diamond Bar breaks down by race and ethnicity — each bar is that group’s share of the population, from the U.S. Census Bureau ACS 5-Year (2024).
Race across Diamond Bar
Each dot is a group of people, placed in their 2020 Census block and colored by race or ethnicity — the pattern shows where groups live across Diamond Bar.
These figures are for Diamond Bar proper — the Census place within its city limits — not the surrounding metro area. Metro-wide totals you’ll see elsewhere are larger because they bundle in neighboring cities and suburbs.
How Diamond Bar commutes
Every dot is a worker moving between home and job. Trace where the area pulls people in from — and where its residents head each day.
35 / 100
How short the typical commute is here, on an absolute 0–100 scale (higher is shorter). How it’s calculated.
Diamond Bar
24,817 commutes, one dot at a time
Diamond Bar
Where 24,817 workers commute
Where residents work
Top destinations for people who live in Diamond Bar, by worker count.
Who commutes in
Top origin places for workers who travel into Diamond Bar.
Top industries
The sectors that employ Diamond Bar’s workforce. Each bar is scaled to that sector’s share of all local jobs — the top sectors shown don’t add up to 100%.
Internet options for Diamond Bar
The biggest home-internet providers in the area — tap any to compare local plans.
FindBetterInternet is a CensusFlow partner site — we link out so you can compare local plans, and CensusFlow’s Census data stays independent. Provider data is from the FCC National Broadband Map (satellite + fixed wireless excluded).