Williamson County Map, Texas

Williamson County Map Collection
We allow you to use our Williamson County map. Attribution is required.
Williamson County, Texas

Williamson County is booming. It’s just north of Austin, and the growth is spilling over. Round Rock, Cedar Park, and Georgetown. These cities are exploding.
Dell’s headquarters brought in the tech crowd. But it’s not all new development. The county has some serious history. Sam Bass, the notorious outlaw, met his end here. The Inner Space Cavern is a geological wonder.
There are still plenty of working ranches. You’ll see longhorns grazing alongside new subdivisions. The politics are changing as newcomers arrive. It’s causing some friction. But that’s Texas for you. Never boring.
Category | Details |
---|---|
County Name | Williamson County |
County Seat | Georgetown |
Population | Approximately 700,000 |
Cities, Towns, and Communities | Georgetown, Round Rock, Cedar Park, Leander |
Interstates and Highways | U.S. Highway 79, U.S. Highway 183, Interstate 35 |
FIPS Code | 48-491 |
Total Area (Land and Water) | 1,128 square miles (1,120 sq mi land, 8 sq mi water) |
Adjacent Counties (and Direction) | Bell County (North), Milam County (Northeast), Lee County (Southeast), Bastrop County (Southeast), Travis County (South), Burnet County (West) |
Time Zone | Central Time Zone (CST) |
State | Texas |
Coordinates | 30°37’N, 97°40’W |
Etymology | Named after Robert McAlpin Williamson, a leader and veteran of the Battle of San Jacinto |
Major Landmarks | Inner Space Cavern, Lake Georgetown |
Website | Williamson County Website |
PHYSICAL MAP
Williamson County Topographic Map
Williamson County lies at the transition from Blackland Prairie to Hill Country. The eastern side is flat and fertile, while the west breaks into ridges and clear-flowing creeks.

TRANSPORTATION MAP
Williamson County Road Map
Roads slice cleanly through the county, linking Georgetown, Round Rock, and the edge of Austin. Major routes are fast and crowded, especially on the southern end.

SATELLITE IMAGERY
Williamson County Satellite Map
Dense development fills the southern half, especially around Round Rock. But west of the escarpment, the land changes quickly. You’ll see trees, hills, and darker terrain.

OUTLINE MAP
Williamson County Blank Map
Williamson County’s outline has an irregular shape. It has no border rivers and no neighboring states. While the southern border is curvy, the other borders are straight.

Neighboring Counties
Here are the 6 neighboring counties of Williamson County: