About ZIP Code 21664
ZIP code 21664 is assigned to Secretary, Dorchester County, Maryland, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 635 with a density of 841.8 people per square mile.
Location Details
ZIP Code21664
CitySecretary
CountyDorchester County
StateMaryland
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude38.6081
Longitude-75.9473
ZIP TypeStandard ZIP
Post Office
Address145 MAIN ST
CitySECRETARY
StateMD
Nearby ZIP Codes in Maryland
Frequently Asked Questions
What city is ZIP code 21664 in?
ZIP code 21664 is in Secretary, Dorchester County, Maryland, United States.
What county is ZIP code 21664 in?
ZIP code 21664 is in Dorchester County, Maryland.
What timezone is ZIP code 21664 in?
ZIP code 21664 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 21664?
The estimated population of ZIP code 21664 is 635 people with a density of 841.8 people per square mile.
What state is ZIP code 21664 in?
ZIP code 21664 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.