20598zip May 2026

Often associated with the Department of Homeland Security (DHS) and its sub-agencies like TSA .

You can confirm official address details through the USPS ZIP Code Lookup tool. Expand map 20598zip

While most 205xx ZIP codes are associated with Washington, D.C., 20598 is specifically assigned to federal agencies operating out of Virginia locations like and Arlington . Primary City: Alexandria, VA Often associated with the Department of Homeland Security

When mailing a federal agency using this code, use the official address provided by the agency (e.g., TSA Headquarters). 20598zip