Diamond Bar, CA zip code
Diamond Bar, California uses one zip code: 91765. Most of it is in Los Angeles County. Together these zip codes are home to about 45K people.
Zip codes
1
Population
45K
All zips combined
Largest zip
91765
44,502 residents
Zip codes in Diamond Bar
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 91765 | 44,502 | $105,565 |