TBD Hwy 21 East Hwy is located in Bastrop, Texas, in Bastrop County. Bastrop County sits at the eastern edge of the Texas Hill Country transition zone, blending the Lost Pines forest, an isolated stand of loblolly pines separated from the East Texas Piney Woods by 100 miles, with open ranch land and the growing spillover of the Austin metro.

The Colorado River flows through the county, and the Lost Pines ecosystem creates a uniquely lush landscape unusual for Central Texas. Bastrop State Park preserves thousands of acres of pine forest that survived and recovered from the devastating 2011 wildfires.

Bastrop had an estimated population of 10,484 as of 2023. The 78602 zip code has a median household income of $86,976, a median home value of $310,300, and a median age of 38.1. The average household size is 2.67 people.

Bastrop County is one of the fastest-growing counties in Texas, driven by Austin metro expansion, the Tesla Gigafactory nearby, and SpaceX's Starbase proximity. Agriculture, timber, and tourism coexist with rapid residential and commercial development.