Smithville TX ZIP Code
Smithville city is located in Texas State, Bastrop County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Smithville TX zip code by its streets and block numbers if we have some of the Smithville streets loaded in our website
Smithville Area Code is 512/830/979 and Time Zone is Central (GMT -06:00).
Smithville Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Smithville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Smithville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Smithville, Texas.
The Smithville Zip Code is 78957.
If you want to send a mail to Smithville City, you should use the 78957 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Smithville 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 78957 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Smithville 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.