St. Augustine Post Office

Find St. Augustine Florida post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Anastasia Isl Finance Post Office 138 Sea Grove Main Street St. Augustine FL 32080 904-825-0628


Saint Augustine Post Office 99 King Street St. Augustine FL 32084 904-825-0628

About St. Augustine Post Offices

St. Augustine Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in St. Augustine, FL. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. St. Augustine post offices are supported entirely by revenues generated by their own operations. Operational authority over the USPS lies with a Board of Governors and rate setting authority falls under the Postal Rate Commission.

You may contact the Post Office for questions about:
  • St. Augustine Post Office hours and locations
  • Mail and package delivery services
  • St. Augustine PO Box services
  • Passport applications and renewals
  • St. Augustine Post Office jobs and employment
USPS Mail Services

The USPS uses a vast network of Post Offices, Processing and Distribution Centers, Priority Mail Processing Centers, Air Mail Centers, and Bulk Mail Centers to sort, process, distribute, and deliver mail. St. Augustine Post Offices serve as one of the primary points of customer contact in the mail delivery process.

St. Augustine Mail Delivery Services

Post Offices in St. Augustine accept mail and packages from senders, offering a range of mailing and pricing options. The most common form of mail delivery, and one for which the St. Augustine USPS has a legal monopoly, is residential first-class mail. First-class mail is designed for envelopes and lightweight packages, and it provides delivery to any location in the U.S. at a flat rate of one first-class mail stamp. Multiple other mailing options are available for letters and packages of any size. Priority mail options provide faster delivery at a higher cost than first-class mail. St. Augustine Post Offices sell stamps, shipping supplies, and certain collectors' and gift items. Customers can also choose Registered, Certified, and Return Receipt mail for varying degrees of verification of an item's delivery. Post Offices also sell money orders. Shipping and customs forms are also available at Post Offices.

St. Augustine PO Boxes

Businesses and residential customers can also use the Post Office to receive their mail instead of choosing delivery to their door. Post Office Boxes, also called P.O. Boxes, are available for rent in multiple sizes for a monthly rental fee.

St. Augustine Passport Applications & Renewals

The St. Augustine Post Office provides passport services. Passport services in St. Augustine may include help with renewing passports, applying for a new passport, changing names on a passport, and processing expedited passport services. Passport acceptance services provided by St. Augustine Post Offices often require having a scheduled appointment.