Sour Lake TX ZIP Code
Sour Lake city is located in Texas State, Hardin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Sour Lake TX zip code by its streets and block numbers if we have some of the Sour Lake streets loaded in our website
Sour Lake Area Code is 409/936 and Time Zone is Central (GMT -06:00).
Sour Lake Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sour Lake City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sour Lake ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sour Lake, Texas.
The Sour Lake Zip Code is 77659.
If you want to send a mail to Sour Lake City, you should use the 77659 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Sour Lake 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 77659 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sour Lake 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 Texas.