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Businesses in Diamond Bar
1,438 businesses in Diamond Bar, United States, across 5 categories. View all →
At a glance
As of August 2026, business.wiki lists 1,438 businesses in Diamond Bar. 96% publish a phone number and 88% have a website, spread across 250 postcode districts. The city's most common business type is restaurant (117 listed).
By postcode district: 91765 (550)·91789 (59)·91765-3909 (27)·91765-1039 (24)·91765-2203 (23)·91789-3837 (22)·91765-1037 (16)·91765-4006 (16)·91765-1007 (14)·91765-3513 (14)
Categories in Diamond Bar
Featured in Diamond Bar
- Round Table PizzaRestaurantCA
- ampmConvenience StoreCA
- ShellGas StationCA
- StarbucksCoffee ShopCA
- The UPS StoreShipping Or Delivery ServiceCA
- MathnasiumTutoring ServiceCA
- The Church of Jesus Christ of Latter-day SaintsChristian Place Of WorshipCA
- Diamond Bar Smiles DentistryDental ClinicCA
- Phillips Ranch Family & Cosmetic DentistryDental ClinicCA
- Wells FargoAtmCA
- MobilGas StationCA
- Grand Avenue DentistryDental ClinicCA
- Diamond Bar DentalDental ClinicCA
- MobilGas StationCA
- MobilGas StationCA
- Diamond Bar LibraryLibraryCA
- Stop Brake ShopsAutomotive ServiceCA
- CitibankBank Or Credit UnionCA
- Farmer BoysRestaurantCA
- Gary M. Souza Physical Therapy and AssociatesPhysical Medicine And RehabilitationCA
- Dentistry by Dr. DoshiDental ClinicCA
- Diamond Bar Dental StudioDental ClinicCA
- Lorbeer Middle SchoolMiddle SchoolCA
- Diamond Bar Dental GroupDental ClinicCA