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United States Postal Service
One of 7 shipping or delivery service listings in Castro Valley.
About United States Postal Service
United States Postal Service is a shipping or delivery service in the professional services sector, based in Castro Valley, CA. Its recorded address is 20283 Santa Maria Ave, 94546. The listing includes a telephone number, an official website. It is one of 7 shipping or delivery service listings tracked in Castro Valley; the nearest comparable listing is CASTRO VALLEY, within walking distance in CASTRO VALLEY. United States Postal Service has 31,861 listed locations in total; this page covers the Castro Valley branch.
- Address
- 20283 Santa Maria Ave, Castro Valley, CA, 94546
- Phone
- 8002758777
- Website
- tools.usps.com
Questions
Where is United States Postal Service located?
20283 Santa Maria Ave, Castro Valley, CA, 94546
How do I contact United States Postal Service?
8002758777 · https://tools.usps.com/locations/details/1440443?utm_source=website-url&utm_medium=search&utm_campaign=yext
What type of business is United States Postal Service?
United States Postal Service is a shipping or delivery service (professional services) in Castro Valley.
United States Postal Service branches
United States Postal Service has 31,861 listed locations. This branch is in Castro Valley.
- Honaunau96726
- Pahoa96778-3001
- Kurtistown96760-3001
- Kailua Kona96740
- Hilo96720-0014
- Pepeekeo96783-8497
- Waikoloa96738-2001
- Ninole96773-9997
- Kamuela96743-3501
- Honokaa96727-7211
Nearby shipping or delivery service
- CASTRO VALLEYCASTRO VALLEY0.0 km
- US Post OfficeCastro Valley0.0 km
- UPS Authorized Shipping OutletCastro Valley0.3 km
- Amazon Locker - TaubeCastro Valley0.4 km
- UPS Access Point locationCastro Valley0.6 km
- UPS Access Point locationCastro Valley0.7 km
- UPS Access Point locationCASTRO VALLEY0.7 km
- Amazon Counter - Health Mart PharmacyHAYWARD2.1 km
- Hayward MailboxesHayward1.8 km
- FedEx Office Print & Ship CenterHayward2.2 km
- UPS StoreHayward2.4 km
- UPS Access Point locationHayward2.5 km
- UPS Access Point locationHayward2.7 km
- The UPS StoreHayward2.8 km
- Amazon Locker - HertaHayward2.9 km
Cite this page
“United States Postal Service, Castro Valley — business.wiki, retrieved August 2026.” Facts on this page come from openly licensed data (Overture Maps Foundation) and are refreshed with each monthly release; sourcing is documented on the methodology page.