07: Where can I drop off my mail-in ballot in person within Gregg County in Texas?Source: https://www.greggcountyvotes.com/Gregg County, 101 East Methvin Suite 112, Longview, Texas 75601 ← 07: Where can I drop off my mail-in ballot in person within Gaines County in Texas? → 07: Where can I drop off my mail-in ballot in person within Irion County in Texas?