There are 7 zip codes in Gregg County, Texas. The most populated is 75605, located in Longview. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7560533,614Longview
7560431,361Longview
7566224,640Kilgore
7560115,470Longview
7564713,026Gladewater
756036,341Longview
756936,128White Oak

Zip Codes in Gregg County, Texas by Population (2024)