ZIP Code 21555 – Oldtown, Maryland | ZipsCode.us
📍ZipsCode.usYour Complete U.S. ZIP Code Guide HomeStatesCitiesTools Search ZIP Code → Home / Maryland ZIP Codes / ZIP Code 21555 21555 ZIP Code 21555 Oldtown, Maryland · Allegany OldtownAlleganyMarylandUnited States Which Maryland city is ZIP code 21555 in?ZIP code 21555 belongs to the city of Oldtown in Maryland (Allegany). See all Maryland ZIP Codes. ZIP…