ZIP Code 21710, Adamstown, Maryland


ZIP Code 21710, Adamstown, Maryland, USA

The ZIP Code 21710 denotes the postal area located in Adamstown, MD. Alongside fundamental details, it also provides the complete ZIP code and the address corresponding to ZIP Code 21710. Additionally, it furnishes further information pertaining to ZIP Code 21710, including nearby ZIP codes and related details.

21710 ZIP Code, Adamstown, MD, United States

This ZIP Code 21710 corresponds to the following geographic regions. Below you can find the details for the postal code:

  • Area name: Atlantic
  • Area code: 4B
  • District name: Maryland
  • District No.: 200
  • Delivery Zip Code: 21710
  • Locale name: Adamstown
  • Phisical Delivery Address: 5537 Mountville Rd
  • City: Adamstown
  • State: MD
  • Physical ZIP 4: 9998

ZIP Code 21710 Status Definitions

  • PRIMARY. Denotes the primary city name, which is the official name recognized by authorities. In some cases, the city may also have an alternative acceptable name.
  • ACCEPTABLE. Signifies an appropriate city name that meets the required standards. City names may be deemed unacceptable if they are abbreviated, as abbreviations are not considered valid city name formats.
  • NOT ACCEPTABLE. Indicates an insufficient or incorrect city name that has been provided or entered based on the available information.
  • UNIQUE. Designated for a specific entity, such as a company, government agency, or organization, with a notable volume of mail. This designation is determined by factors including the average daily volume of letter-sized mail received, the availability of ZIP Code numbers within the postal area, and a cost-benefit analysis conducted by the US postal service.

Important ZIP Code 21710 Information – Adamstown

ZIP Code 21710 is situated in Adamstown, MD, encompassing an area of 0 square miles.


Designated as a PO Box ZIP Code, 21710 primarily serves Post Office box deliveries, with mailbox delivery being a minority use.


21710 operates in the Eastern timezone and observes daylight saving time. Telephone services are provided by Area Code: 4B


Post Office in ZIP Code 21710, Adamstown

Adamstown serves as the sole post office within ZIP Code 21710. Below, you’ll find the address. Scroll to access information regarding services offered for Adamstown.

  • Adamstown Post Office Address: 5537 Mountville Rd

RAYNHAM CENTER serves as the sole post office within ZIP Code 02768. Below, you’ll find the address, phone number, and interactive map. Click to access information regarding services offered and operating hours for RAYNHAM CENTER.

How to write a U.S. envelope to Adamstown, 21710?

Firstly, ensure the recipient’s mailing information is accurately filled in the center of the envelope. The first line should contain the recipient’s name, followed by the street address including a detailed house number on the second line, and concluding with the city, state abbreviation, and ZIP Code on the last line.

Secondly, write the sender’s information on the top left corner of the envelope. In the event that the mail cannot be delivered, it will be returned to the sender’s address.

Lastly, remember to affix the stamp to the top right corner of the envelope. Failure to do so may result in the letter being excluded from the delivery process. ZIP Code 21710, Adamstown, Maryland.
ZIP Code 21710, Adamstown, Maryland