ZIP Code 21139 – Riderwood, Maryland | ZipsCode.us
📍ZipsCode.usYour Complete U.S. ZIP Code Guide HomeStatesCitiesTools Search ZIP Code → Home / Maryland ZIP Codes / ZIP Code 21139 21139 ZIP Code 21139 Riderwood, Maryland · Baltimore RiderwoodBaltimoreMarylandUnited States Which Maryland city is ZIP code 21139 in?ZIP code 21139 belongs to the city of Riderwood in Maryland (Baltimore). See all Maryland ZIP Codes. ZIP…