●78663Homes for Sale

Market Overview for Zip Code 78663

There are 17 active listings in Zip Code 78663 with a median list price of $2.9M and a median sold price of $1.1M.

Homes average 83 days on market.

Over the past 30 days, 2 homes have sold, with 6 sales in the past 12 months.

The average price per square foot is $984.

About Zip Code 78663

Zip code 78663 covers Round Mountain, a small unincorporated community of roughly 200 people in Blanco County, approximately 45 miles west of downtown Austin in the Texas Hill Country. Round Mountain sits along US-281 between Johnson City to the north and the SH-71 junction to the south, near the headwaters of Flat Creek which flows east toward Lake Travis. The community takes its name from a prominent rounded granite hill visible from the highway. The area was settled in the 1850s and remains a rural ranching community with a post office, a volunteer fire department, and the Round Mountain Community Center. The terrain is classic Edwards Plateau with exposed limestone and granite, live oak and Ashe juniper cover, intermittent creeks, and views across the Hill Country.

Real estate in 78663 consists of Hill Country acreage and ranch properties, with very limited conventional housing stock. Raw land runs from $15,000 to $30,000 per acre depending on road access, views, water features, and topography, with higher per-acre prices for smaller tracts and premium view lots. Improved ranch properties on 10 to 100 acres with homes typically list from $600K to over $3 million. Custom-built Hill Country homes on 5 to 20 acres range from $500K to $1.5 million. Older homes in the small Round Mountain settlement are occasionally available from $300K to $500K on smaller lots. There is no subdivision development in the area; the real estate market serves buyers seeking Hill Country ranch land, retreat properties, or custom homesites with privacy and views.

Students in 78663 attend Johnson City ISD, a small district serving approximately 700 students across two campuses. Johnson City Elementary covers pre-K through 6th grade, and Johnson City High School serves 7th through 12th. The district is about 15 minutes north of Round Mountain on US-281. Johnson City High School competes in UIL 2A athletics and has a strong FFA and agriculture program. Private school options require a drive to Marble Falls (about 20 minutes north), Dripping Springs (about 30 minutes southeast), or Austin. The small school environment offers low student-to-teacher ratios and personalized attention.

Round Mountain is approximately 45 minutes from downtown Austin via US-281 and SH-71, or via RM 620 through Bee Cave and Lakeway. Johnson City is about 15 minutes north on US-281, and Marble Falls is approximately 20 minutes north. Dripping Springs is roughly 25 miles southeast via SH-71. The area's isolation and Hill Country terrain limit direct route options, making commute times to Austin longer than the mileage might suggest. Most residents are ranchers, retirees, or remote workers who do not commute daily. The nearest grocery shopping is in Johnson City or Marble Falls. The area is within the Pedernales Electric Cooperative service territory, and many properties rely on rainwater collection or private wells for water supply.

Living in Zip Code 78663

Round Mountain's population is very small and spread across large ranch properties. Residents include multi-generational ranching families, retirees drawn to the Hill Country lifestyle, and professionals working remotely or commuting to Austin a few days per week. Median household income data is limited for the small population, but Blanco County as a whole has a median of approximately $60,000. Property values are driven by land more than structures, and many residents maintain working livestock operations with cattle, goats, or exotic game. The homeownership rate approaches 90 percent. Cost of living is moderate; property prices per acre are high relative to eastern areas, but property tax rates in Blanco County are among the lower rates in the Austin region.

Daily life in Round Mountain is defined by the Hill Country landscape and self-sufficient living. Many residents manage their own land, maintaining fencing, clearing brush, and managing livestock and wildlife. Johnson City, 15 minutes north, provides essential services including a grocery store, gas stations, restaurants, and the Lyndon B. Johnson National Historical Park where the 36th president's boyhood home and ranch are open for tours. Pedernales Falls State Park, about 20 minutes northeast, offers hiking trails, swimming holes in the Pedernales River, and camping on 5,200 acres of Hill Country terrain. The area's wineries, including Perissos Vineyard and Winery near Burnet and William Chris Vineyards near Hye, are within 20 to 30 minutes. The Round Mountain Community Center hosts occasional potluck dinners and local events. Flat Creek Estate Winery, located within the 78663 zip code, draws visitors for tastings and events with Hill Country views. Night skies in the area offer stargazing opportunities due to minimal light pollution.

Things to Do in Zip Code 78663

• Pedernales Falls State Park: 5,200-acre state park about 20 minutes northeast with Pedernales River swimming holes, hiking trails, camping, and horseback riding.
• Flat Creek Estate Winery: Hill Country winery on Singleton Bend Road in 78663 offering tastings, tours, and events with views of the surrounding limestone terrain.
• LBJ National Historical Park: National Park Service site in Johnson City, about 15 minutes north, with tours of LBJ's boyhood home and the Texas White House ranch.
• Hill Country Wine Trail: Multiple wineries within 20 to 30 minutes including William Chris Vineyards in Hye and Perissos Vineyard near Burnet.
• Stargazing: Minimal light pollution in the Round Mountain area provides conditions for night sky observation, meteor shower viewing, and astrophotography.

Major Employers in Zip Code 78663

• Johnson City ISD (Education): Small public school district with approximately 100 staff across two campuses in Johnson City, about 15 minutes north.
• Pedernales Electric Cooperative (Utilities): Rural electric cooperative headquartered in Johnson City serving over 375,000 meters across the Hill Country.
• National Park Service (Government): Operates the Lyndon B. Johnson National Historical Park in Johnson City and Stonewall, employing rangers and support staff.
• Flat Creek Estate Winery (Agriculture/Hospitality): Hill Country winery within the 78663 zip code producing wines and hosting events, employing vineyard and hospitality staff.

Zip Code 78663 Schools

Students in 78663 attend Johnson City ISD, a small district serving approximately 700 students on two campuses about 15 minutes north.

School District: Johnson City ISD

Public Schools

Pre-Schools

• Johnson City ISD Pre-K - Public pre-kindergarten program within Johnson City Elementary.
• Johnson City ISD Pre-K - Public pre-kindergarten program at Johnson City ISD, approximately 15 miles west of Round Mountain.

Private Schools

• Faith Academy of Marble Falls - Private Christian school in Marble Falls, approximately 20 minutes north of Round Mountain.
• Hill Country Christian School - Private school in Burnet, approximately 30 minutes north.

Frequently Asked Questions