Diamond Bar

Population

54,880 (2020)

Type

City

Area

14.88 sq mi (38.53 km²), 0.01 sq mi water

Median age

40.8

Households

15,039

Persons per household

3.1

Median household income

$97,968

Average house value

$643,200

Businesses

1,503

Employees

13,219

Government

CITY OF DIAMOND BAR

Government office

21810 COPLEY DRIVE, DIAMOND BAR, CA 91765