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 (DHS) and its sub-agencies like TSA . 20598zip
In technical contexts, "20598.zip" may refer to a specific archive file: While most 205xx ZIP codes are associated with Washington, D