78503 ZIP Code


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78503 is a zip code assigned by the US Postal Service Office for a US City.


You can search for the 78503 zip code by its streets and block numbers if we have some of the streets loaded in our website

You should use 78503 Zip Code if you want to send mail to a certain US City.



78503 Zip Code - US ZIP Codes

The US ZIP Code basic format consists of five decimal numerical digits assigned like the 78503 Zip Code. An extended ZIP+4 code, introduced in the 1980s, includes the five digits 78503 ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code.


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78503 Zip Code belongs to Mcallen, TX - US. 78503 Zip code is located at Hidalgo County and is related to this cities: Mcallen, Mc Allen

78503 Zip Code Area Code is 956 and 78503 Zip Code Time Zone is Central (GMT -06:00).

In 1983, the U.S. Postal Service introduced an expanded Mcallen 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 78503 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mcallen 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.


78503 Zip Code MAP



What city is 78503 Zip Code?

The 78503 Zip Code is assigned to Mcallen City in Texas State.




ZIP Plus 4 Mcallen - US Streets Zip Codes

Please check the Mcallen page



Reverse 78503 Zip Code Lookup

78503 Zip Code City?

Mcallen, TX

Mcallen (Hidalgo County), Texas - US

This Zip code is related to Mcallen, Mc Allen City



78503 ZIP Code Lookup

78503 Zip Code File:
Zip Code: 78503
City: Mcallen
Mcallen Area Code: 956
Mcallen, TX - Time Zone: Central (GMT -06:00)
County: Hidalgo
City Aliases: Mcallen, Mc Allen
State: Texas
State Abb: TX