Williamson County Post Offices

500 E Whitestone Blvd
Cedar Park, Texas 78613

13701 S State Highway 95
Coupland, Texas 78615

308 N Patterson Ave
Florence, Texas 76527

2300 Scenic Dr
Georgetown, Texas 78626

117 W Davilla St
Granger, Texas 76530

388 Exchange Blvd
Hutto, Texas 78634

12355 N Interstate 35
Jarrell, Texas 76537

801 S Highway 183
Leander, Texas 78641

2655 Ranch Road 1869
Liberty Hill, Texas 78642

10109 Lake Creek Pkwy
Austin, Texas 78729

2250 Double Creek Dr
Round Rock, Texas 78664

797 Sam Bass Rd
Round Rock, Texas 78681

14775 Fm 1105
Schwertner, Texas 76573

202 W 4th St
Taylor, Texas 76574

101 E Sheldon Ave
Thrall, Texas 76578

3745 Fm 972
Walburg, Texas 78673

200 Fm 1105
Weir, Texas 78674

Williamson County

There are 17 US Post Offices in Williamson County serving a total of 329,505 residents equating to 19,383 residents per post office. It's estimated that approximately 525,927 packages are handled across the 17 county post offices annually. Williamson County (sometimes abbreviated as \"Wilco\") is a county in the U.S. state of Texas. As of the 2016 census estimate, the population was 545,412. Its county seat is Georgetown. The county is named for Robert McAlpin Williamson (1804?\u20131859), a community leader and veteran of the Battle of San Jacinto. Williamson County is part of the Austin-Round Rock, TX Metropolitan Statistical Area. It was included with Austin in the Best Cities to Live in for 2009 by the Milken Institute It is located on both the Edwards Plateau to the west, consisting of rocky terrain and hills, and Texas Blackland Prairies in the east consisting of rich, fertile farming land. The two areas are roughly bisected by Interstate 35."