Lock Haven PA ZIP Code
Lock Haven city is located in Pennsylvania State, Clinton County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Lock Haven PA zip code by its streets and block numbers if we have some of the Lock Haven streets loaded in our website
Lock Haven Area Code is 570 and Time Zone is Eastern (GMT -05:00).
Lock Haven Zip Code - Pennsylvania
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Lock Haven City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Lock Haven ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Lock Haven, Pennsylvania.
The Lock Haven Zip Code is 17745.
If you want to send a mail to Lock Haven City, you should use the 17745 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Lock Haven ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 17745 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Lock Haven city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Pennsylvania.