{ zip. codes .tel }

ZIP Code 21555 — Oldtown, MD

ZIP code 21555 serves Oldtown, Maryland, within Allegany County. It is part of area code 301, with population 1,945 and mean income of $57,198.

View ZIP codes in Maryland View area codes in Maryland

Location details

City: Oldtown
County: Allegany County
State: Maryland (MD)
Area code: 301
Population: 1,945
Mean income: $57,198
Coordinates: 39.575200, -78.562500
Timezone: America/New York

Related ZIP codes in MD

Open state page

Silver Spring, MD

Gaithersburg, MD

Owings Mills, MD

About ZIP code 21555

ZIP code 21555 is a Standard ZIP in Oldtown, Maryland. It is linked to area code 301 and can be used to explore related ZIP codes, state-level coverage, and nearby geographic data.

The location coordinates are 39.575200, -78.562500, which can later be displayed on a map for better geographic context.

Location map

Map preview

Click to View the Map