The ZIP Code maps and database are updated 4 times per year. Database updated: April 1, 2022, Maps updated: May 5, 2022.
Washington Navy Yard, DC 20398 Data & Demographics (As of July 1, 2021)
There is no demographic data for ZIP Code 20398 due to the small number of residential addresses located within it.
However, ZIP Code 20398 is contained within ZIP Code 20374 and perhaps demographic information for this ZIP Code would be of interest to you: ZIP Code 20374 Demographic Information.