Popularity:#3 of 25 Post Offices in San Joaquin County#267 of 1,645 Post Offices in California#5,023 in Post Offices
Address, Phone Number, and Hours for Thornton Post Office, a Post Office, at West Stockton Street, Thornton CA.
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The Thornton Post Office, located in Thornton, CA, is a branch location of the United States Postal Service (USPS) that serves the Thornton community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.You may contact the Post Office for questions about: