ZIP Code 91765: Diamond Bar, CA
County: Los Angeles County
Coordinates: 34.00660, -117.80980
ZIP Type: Standard
Time Zone: Pacific Time (PT)
This profile provides an in-depth look at ZIP code 91765, serving Diamond Bar in CA. It lies in Los Angeles County and supports delivery, planning, and address verification.
| Primary City | Diamond Bar |
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| ZIP Code | 91765 |
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| County | Los Angeles County |
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| State | CA |
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| Latitude / Longitude | 34.00660, -117.80980 |
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| ZIP Type | Standard |
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| Time Zone | Pacific Time (PT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 91765 (not an exact boundary).
Geographic & Administrative Context
For mapping and verification, 91765 is commonly represented around 34.00660, -117.80980. These coordinates help identify the general area within Los Angeles County, CA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 91765 for mail delivery and general location reference in
Los Angeles County,
CA.
Some addresses near Diamond Bar may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Diamond Bar within CA.
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Frequently Asked Questions
What is the primary city for ZIP code 91765?
The primary city for this ZIP code is Diamond Bar, located in CA.
In which county is 91765 located?
ZIP code 91765 is situated within Los Angeles County, CA.
What are the coordinates for 91765?
The approximate center point is 34.00660 (Latitude) and -117.80980 (Longitude).
Is ZIP code 91765 active?
This page lists ZIP 91765 as Listed based on the latest refresh date shown above.
Does ZIP 91765 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08