Spokesman John Nichols said 50 homes were evacuated but officials did not think they were in imminent danger, the Austin (Texas) American Statesman reported.
The fire started Tuesday afternoon at the Griffith League Scout Ranch and spread to 100 acres within two hours.
A spokeswoman for the Bastrop County Sheriff's office said by nightfall the fire had consumed 1,000 acres.
Unlike last month, firefighting aircraft was available and the blaze was 25 percent contained by 8:30 p.m.
September's wildfires in Bastrop County burned 34,000 acres, destroyed 1,600 homes and killed two people, the Texas Forest Service said.
"We 'bout had enough of fires for a while," said Sylvanus Bates, whose son's house is close to the area where the fire started. "It's just so dry and hot. You never know what's going to come next."
Bastrop County is southeast of Austin.