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
City
Population
75605Longview33,614
75604Longview31,361
75662Kilgore24,640
75601Longview15,470
75647Gladewater13,026
75603Longview6,341
75693White Oak6,128

Gregg County, Texas Zip Codes by Population (2024)