Post offices are retail locations operated by the United States Postal Service (USPS), an independent federal agency that delivers mail and packages to every address in the country. USPS is one of the oldest federal agencies, authorized by the U.S. Constitution, and operates one of the world's largest civilian vehicle fleets to support daily delivery nationwide.
There are 52 states with Post Office locations across the United States. USPS operates over 31,000 post office locations, making it one of the most widely distributed government-related facilities in the country.
Post Office in the United States
Browsing by state helps you find your nearest post office, confirm current hours, and locate facilities that offer specialty services such as passport acceptance, bulk mailing, or package pickup. Not all post offices offer every service, so checking ahead is worthwhile for specialized needs.
Common Services
- Mailing letters and packages via First-Class, Priority, and Express Mail services
- PO box rentals for secure mail receipt and business use
- Accepting passport applications and forwarding to processing centers
- Selling stamps, money orders, and shipping supplies
Most post offices are open Monday through Friday and Saturday mornings, though hours vary by location size. Bring a valid government-issued photo ID for passport applications, money orders over certain limits, and picking up held or certified mail. Many USPS services including mail forwarding and package tracking can be managed online.
For official information, visit United States Postal Service.
About Post Office
The United States Postal Service is an independent establishment of the federal government, operating without tax funding and generating revenue through postage and shipping fees. USPS is mandated to provide universal service to every address in the U.S., including rural and remote communities underserved by private carriers.
Common Services
- Certified and registered mail services with delivery confirmation and signature requirements
- Change of address and mail forwarding for moves and temporary absences
- Informed Delivery email notifications showing incoming mail and packages
- Hold mail requests for vacations and extended absences
Customers can save time at the post office by printing shipping labels and paying postage online at usps.com before arriving. Self-service kiosks available at many locations allow you to weigh packages, buy postage, and complete transactions outside of staffed counter hours.
For official information, visit United States Postal Service.