Businesses in 91789
723 businesses in the 91789 postcode district, part of Walnut, United States.
At a glance
As of August 2026, business.wiki lists 723 businesses in 91789 across 111 categories. 93% publish a phone number and 89% have a website. The district's most common business type is restaurant (58 listed).
Top categories: Restaurant (58)·Automotive Service (37)·Home Service (31)·Financial Service (28)·Technical Service (25)·Fashion And Apparel Store (21)·Corporate Or Business Office (19)·Professional Service (17)·Electronics Store (16)·Dental Clinic (15)·Personal Or Beauty Service (15)·Supplier Or Distributor (13)
Directory — top 30 by data completeness
| Business | Category | Address | Postcode | Phone | Web |
|---|---|---|---|---|---|
| Mathnasium | Tutoring Service | 1221 N Grand Ave | 91789 | +16267096284 | ✓ |
| 76 | Gas Station | 1010 Fairway Dr | 91789 | +19095983552 | ✓ |
| Creekside Park | Park | 780 Creekside Dr | 91789 | +19095985605 | ✓ |
| Del Taco | Fast Food Restaurant | 20259 Valley Blvd | 91789 | +19094681844 | ✓ |
| CubeSmart Self Storage | Storage Facility | 985 Fairway Dr | 91789 | (909) 598-8845 | ✓ |
| Los Amigos Restaurant | Restaurant | 20835 Valley Blvd | 91789 | +19093239735 | ✓ |
| Sweets By Aroma Craft | Casual Eatery | 20265 Valley Blvd | 91789 | +19098696688 | ✓ |
| Suzanne Park | Park | 625 Suzanne Rd | 91789 | +19095985605 | ✓ |
| Snow Creek Park | Park | 21600 E Snow Creek Dr | 91789 | +19095985605 | ✓ |
| City of Walnut Senior Center | Social Or Community Service | 21215 La Puente Rd | 91789 | +19095986200 | ✓ |
| South Pointe Middle School | Middle School | 20671 Larkstone Dr | 91789 | +19095958171 | ✓ |
| Ronald Reagan Park | Park | 2201 Peaceful Hills Rd | 91789 | +19098397070 | ✓ |
| 24 Hour Fitness | Gym | 21560 Valley Blvd. | 91789 | +19099786046 | ✓ |
| Chevron | Gas Station | 1203 N Grand Ave | 91789 | +19095957903 | ✓ |
| Wingstop | Restaurant | 1229 N Grand Ave | 91789 | +19094448760 | ✓ |
| The Habit Burger Grill | Restaurant | 1245 N Grand Ave | 91789 | +18405881020 | ✓ |
| Salon Rumors | Personal Or Beauty Service | 1301 N Grand Ave | 91789 | +19098697214 | ✓ |
| Yoshinoya | Restaurant | 1269 N Grand Ave | 91789 | +19096106919 | ✓ |
| Taco Nazo | Restaurant | 1267 N Grand Ave | 91789 | +19095950555 | ✓ |
| R&B Tea Walnut | Non Alcoholic Beverage Venue | 1251 N Grand Ave | 91789 | +19094891568 | ✓ |
| Animal Hospital of Walnut | Animal Or Pet Service | 22039 Valley Blvd | 91789 | +19095941737 | ✓ |
| Church of Jesus Christ of Latter Day Saints | Christian Place Of Worship | 1275 N Grand Ave | 91789 | +19095952236 | ✓ |
| Ten Ren's Tea Time | Restaurant | 515 N Grand Ave Ste F | 91789 | (909) 839-2665 | ✓ |
| Red Persimmon Nails & Spa | Personal Or Beauty Service | 21750 Valley Blvd | 91789 | (909) 594-1800 | ✓ |
| Osuna's Restaurant | Restaurant | 18746 Amar Rd | 91789 | +16268104101 | ✓ |
| Ootoro Japanese Restaurant | Restaurant | 1569 Fairway Dr | 91789 | (909) 595-8299 | ✓ |
| California Coach Auto Body And Towing | Automotive Service | 22064 Valley Blvd | 91789 | (909) 595-9448 | ✓ |
| Baby Elephant Thai Cuisine | Restaurant | 20795 Amar Rd | 91789 | +19095953034 | ✓ |
| Walnut Bakery | Casual Eatery | 1207 N Grand Ave | 91789 | (909) 594-4169 | ✓ |
| 24 Hour Fitness | Gym | 18730 Amar Road | 91789 | +16269231202 | ✓ |
Showing the 30 most complete records of 723 total in 91789.
About this data
Counts are computed live from open data (Overture Maps Foundation), refreshed with each monthly release. Cite as: “business.wiki, 91789 postcode district (August 2026)”.