About ZIP Code 21791

ZIP code 21791 is assigned to Union Bridge, Frederick County, Maryland, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 5,340 with a density of 44.8 people per square mile.

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Location Details

ZIP Code21791
CityUnion Bridge
CountyFrederick County
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude39.5427
Longitude-77.1871
ZIP TypeStandard ZIP

Post Office

Address111 PENROSE ST
CityUNION BRIDGE
StateMD

Nearby ZIP Codes in Maryland

Frequently Asked Questions

What city is ZIP code 21791 in?

ZIP code 21791 is in Union Bridge, Frederick County, Maryland, United States.

What county is ZIP code 21791 in?

ZIP code 21791 is in Frederick County, Maryland.

What timezone is ZIP code 21791 in?

ZIP code 21791 is in the Eastern Time (ET) zone (America/New_York).

What is the population of ZIP code 21791?

The estimated population of ZIP code 21791 is 5,340 people with a density of 44.8 people per square mile.

What state is ZIP code 21791 in?

ZIP code 21791 is in Maryland (MD), United States.

📋 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.