A 900-square-mile county at the eastern edge of the Austin metro — pine forest in the west, blackland prairie in the east, the Colorado River cutting through the middle.
Bastrop County sits 30 miles east of Austin along the Colorado River. It is one of the few places in Central Texas where pine forest meets oak savanna meets blackland prairie within a single county. That ecological seam — the boundary between the Coastal Plain and the Blackland Prairie — is the reason the Lost Pines exist here and nowhere else.
The county covers 895 square miles. The Colorado River runs roughly west-to-east through the middle, with Bastrop, Smithville, and Utley along its banks. The eastern third is rolling farmland; the western third is forested; the south is ranchland.
The county seat. Population around 12,000. Historic downtown on the Colorado, anchored by a 19th-century courthouse and a working Main Street.
Population around 4,500. Antique shops, a restored opera house, the home of Hope Floats. Smaller, slower, prettier than people expect.
Population around 11,000. Brick-built downtown, sausage capital of Texas, growing fast as the Austin metro pushes east on Highway 290.
Population around 700. Watermelons, a tiny museum, a one-stoplight feel. Old-Texas character intact.
Unincorporated. Just north of Highway 71, near the Hyatt resort and the new tech corridor along the river.
South-county communities. Cattle, hay, and family land — the ranchland half of Bastrop County.
Humid subtropical. Hot summers — July and August routinely 95-100°F — with mild winters in the 50s and occasional freezes. Annual rainfall around 38 inches, mostly in spring and fall. Hard freezes happen most years; snow once a decade.
The Lost Pines moderate the climate slightly compared to the prairie counties to the east. Mornings are cooler under the canopy; afternoons feel less like West Texas and more like East Texas.
Bastrop County crossed 100,000 residents in the early 2020s and is now estimated at around 115,000. The county grew about 17% over the past four years, one of the fastest growth rates in Texas, driven by Austin spillover, remote work, and major employers expanding east of the city.
Most of the new population is concentrated along the Highway 71 / 130 Toll corridor and in the Cedar Creek / Bastrop / Elgin triangle. The southern half of the county remains rural and lightly populated.