07: Where can I drop off my mail-in ballot in person within Walker County in Texas?Source: https://www.co.walker.tx.us/department/division.php?structureid=1401301 Sam Houston Ave, Huntsville, TX 77340 ← 07: Where can I drop off my mail-in ballot in person within Sterling County in Texas? → 07: Where can I drop off my mail-in ballot in person within Willacy County in Texas?