About ZIP Code 21555
ZIP code 21555 is assigned to Oldtown, Allegany County, Maryland, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 1,470 with a density of 5.8 people per square mile.
Location Details
ZIP Code21555
CityOldtown
CountyAllegany County
StateMaryland
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude39.5878
Longitude-78.5568
ZIP TypeStandard ZIP
Post Office
Address19104 OPESSA ST SE
CityOLDTOWN
StateMD
Nearby ZIP Codes in Maryland
Frequently Asked Questions
What city is ZIP code 21555 in?
ZIP code 21555 is in Oldtown, Allegany County, Maryland, United States.
What county is ZIP code 21555 in?
ZIP code 21555 is in Allegany County, Maryland.
What timezone is ZIP code 21555 in?
ZIP code 21555 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 21555?
The estimated population of ZIP code 21555 is 1,470 people with a density of 5.8 people per square mile.
What state is ZIP code 21555 in?
ZIP code 21555 is in Maryland (MD), United States.
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Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.