Roma, TX ZIP Code

ZIP code, county, time zone and coordinates of Roma, Texas

The ZIP code of Roma, TX is 78585. It is in Starr County.

Mailing address format for Roma

John Smith
123 Main St
ROMA TX 78585
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

ZIP code	Population	Area
78585	—	1.7 sq mi	Main

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

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What is the ZIP code for Roma, TX?

The main ZIP code for Roma, TX is 78585.

How many ZIP codes does Roma have?

Roma has 1 ZIP code.

What county is Roma, TX in?

Roma is in Starr County, Texas.

What time zone is Roma in?

Roma is in the America/Chicago time zone (CST, UTC-06:00 right now).

What are the coordinates of Roma?

Latitude 26.41078, longitude -99.00215.

Last updated: November 14, 2026