20 Sheppard Ln is located in Lampasas, Texas, in Lampasas County. Lampasas County sits at the northeastern edge of the Hill Country, centered on Lampasas, a small historic city known for its mineral springs that once drew health-seekers from across Texas. The county blends working ranch land with proximity to the Killeen-Temple metro and the growing northern Austin suburbs.

The Lampasas River flows through the county seat, and Sulphur Creek, fed by mineral springs, runs through historic downtown Lampasas. The terrain features limestone hills and cedar brakes in the west transitioning to gentler agricultural land in the east. Lampasas sits at the edge of the Lampasas Cut Plain geological region.

Lampasas had an estimated population of 7,506 as of 2023. The 76550 zip code has a median household income of $73,697, a median home value of $237,600, and a median age of 42.8. The average household size is 2.63 people.

Cattle ranching, agriculture, Fort Cavazos proximity, and a growing commuter population from the Killeen-Temple metro define the Lampasas County economy. The county offers affordable Hill Country-adjacent acreage for buyers who want the landscape without the premium prices of the core Hill Country counties.