ZIP Code 21555

Zip Code: 21555
Type: Standard
Official USPS city name: Oldtown
Official USPS State Code: MD
Official State Name: Maryland
ZCTA: TRUE
Population: 1586.0
Density: 5.8
Primary Official County Code: 24001
Primary Official County Name: Allegany
Official County Name: Allegany
Official County Code: 24001
Imprecise: FALSE
Military: FALSE
Timezone: America/New_York (14:47 PM Tuesday, April 29 2025-04-29 (GMT -0400))
Geo Point: 39.58935, -78.55658