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 20391 Data & Demographics (As of July 1, 2021)
There is no demographic data for ZIP Code 20391 due to the small number of residential addresses located within it.
However, ZIP Code 20391 is contained within ZIP Code 20521 and perhaps demographic information for this ZIP Code would be of interest to you: ZIP Code 20521 Demographic Information.