what zip code is crownsville
An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Crownsville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Crownsville, Maryland. The Crownsville Zip Code is 21032. If you want to send a mail to Crownsville City, you should use the 21032 Zip Code. In 1983, the U.S. Postal Service introduced an expanded Crownsville ZIP code system that it called ZIP+4, often called plus-four codes, add-on codes, or add ons.