Mckinney TX ZIP Code
Mckinney city is located in Texas State, Collin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mckinney TX zip code by its streets and block numbers if we have some of the Mckinney streets loaded in our website
Mckinney Area Code is 469/214/972 and Time Zone is Central (GMT -06:00).
Mckinney Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mckinney City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mckinney ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mckinney, Texas.
The Mckinney Zip Code is 75069, 75070, 75071.
If you want to send a mail to Mckinney City, you should use the 75069, 75070, 75071 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mckinney 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 75069, 75070, 75071 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mckinney 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.