Market Overview for Zip Code 78666

There are 358 active listings in Zip Code 78666 with a median list price of $343K and a median sold price of $305K.

Homes average 118 days on market.

Over the past 30 days, 49 homes have sold, with 716 sales in the past 12 months.

The average price per square foot is $217.

About Zip Code 78666

Zip code 78666 covers San Marcos, the county seat of Hays County, located along Interstate 35 approximately 30 miles south of downtown Austin and 50 miles north of San Antonio. The city has a population of approximately 68,000, heavily influenced by the presence of Texas State University, which enrolls over 38,000 students. San Marcos straddles the Balcones Escarpment where the Texas Hill Country meets the Blackland Prairie, and the San Marcos River — fed by San Marcos Springs, one of the largest artesian spring systems in the western United States — flows through the center of town.

Real estate in 78666 spans a wide range, from student-oriented apartments and condos near the Texas State campus starting around $150K to single-family homes in established neighborhoods like Blanco Vista, Kissing Tree (an active-adult 55+ community), and Willow Creek Estates ranging from $250K to $550K. Rural properties west of town toward the Hill Country list from $400K to over $1 million for homes on 5 to 20 acres. New construction has expanded rapidly along Wonder World Drive and RM 12, with national builders offering homes from $275K. The median home price across the zip code is approximately $320K, well below the Austin metro average.

Students in 78666 attend San Marcos Consolidated ISD, which serves approximately 8,500 students across 13 campuses. Elementary schools include Travis, Bowie, Crockett, De Zavala, and Mendez. Miller Middle School and San Marcos High School handle secondary grades. San Marcos High School competes in UIL 6A athletics and offers career and technical education pathways. The district also operates the San Marcos Academy campus for alternative education. Texas State University, the fifth-largest university in the state, provides higher education and is a major economic driver for the area.

San Marcos sits at the crossroads of I-35 and SH-123, placing it equidistant between Austin and San Antonio. Austin-Bergstrom International Airport is approximately 35 minutes north via SH-130. The San Marcos Municipal Airport handles general aviation. The city's outlet malls — Tanger Outlets San Marcos and San Marcos Premium Outlets — draw over 12 million visitors annually and are the largest outlet shopping destination in the state. Amazon operates a fulfillment center east of I-35, and the Texas State University campus generates significant economic activity with its 6,000-plus employees.

Living in Zip Code 78666

San Marcos has a split demographic profile: a large student population associated with Texas State University and a growing contingent of families and retirees attracted by lower housing costs relative to Austin. Median household income is approximately $42,000, depressed by the large student population; non-student household income is closer to $65,000. The city has a younger median age of about 24 years, again reflecting the university presence. The Kissing Tree community west of I-35 caters specifically to buyers 55 and older with over 1,000 planned homes, a clubhouse, pool, and on-site restaurant.