000A Union School House Rd is located in Mason, Texas, in Mason County. Mason County is one of the most authentic and unspoiled counties in the Texas Hill Country, a place where multi-generational ranch families still run cattle on the same land their great-grandparents homesteaded, and where the town of Mason feels genuinely unchanged by the tourism wave that has transformed neighboring counties.

The Llano River forms the southern boundary of Mason County, and the San Saba River flows through the northern reaches. The terrain is classic Hill Country granite and limestone, with live oak motts, cedar brakes, and open grasslands supporting exceptional wildlife populations including the state's highest concentration of whitetail deer per square mile.

Mason had an estimated population of 1,993 as of 2023. The 76856 zip code has a median household income of $75,048, a median home value of $271,500, and a median age of 44.1. The average household size is 2.7 people.

Ranching, hunting leases, pecan farming along river bottoms, and a quiet tourism economy centered on Mason's historic courthouse square define the county's economic character. Mason is increasingly sought by buyers seeking pristine large-acreage ranches with minimal development pressure and authentic Texas ranch culture.