United States Postal Service - Washington, DC

The United States Postal Service began in 1775 with the early national postal system and later evolved into a federal mail and package delivery service. The company provides mailing, shipping, postage, package tracking, ZIP Code lookup, pickup scheduling, and related retail tools for consumers and businesses. The company also supports business mailing services, licensing and permissions, delivery growth management, passport applications, and overseas ballot delivery. The Postal Service continues to serve a broad domestic address network and remains central to everyday mail, package, and government delivery needs.