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San Marcos is the county seat of Hays County, situated on the Balcones Escarpment where the Edwards Plateau meets the Blackland Prairie, roughly midway between Austin and San Antonio along Interstate 35. With about 80,000 residents, it is one of the fastest-growing cities on the Austin-San Antonio corridor, anchored by Texas State University and the spring-fed San Marcos River that runs through the heart of town. The river defines the city. Spring Lake, at the headwaters, feeds the San Marcos River with constant-temperature spring water, creating one of Texas's largest spring systems and supporting rare, endangered species and a site of human habitation stretching back more than 10,000 years. Tubing, kayaking, paddleboarding, and swimming on the river are woven into local life, and the university's graduation tradition of jumping into the river underscores its central role. Texas State University, with its hilltop campus and tens of thousands of students, drives much of the city's economy and culture, adding lectures, athletics, and a lively music scene. San Marcos is also a major retail destination: the San Marcos Premium Outlets and Tanger Outlets draw shoppers from across the region at the Exit 200 interchange. Downtown, a historic courthouse square anchors restaurants, bars, and live-music venues, while the city's mermaid heritage and public art give it a distinctive local identity. San Marcos sits between two major metros, roughly 30 miles from both downtown Austin and downtown San Antonio, making it a practical base for commuters to either city. It suits students and university staff, young professionals, and families drawn to river recreation, Hill Country access, and a fast-growing but still approachable Texas community. Its growth has brought new subdivisions and schools alongside the older neighborhoods that ring the university and downtown.

Population 79,808

County Hays County

Active Listings 1432

Frequently Asked Questions

What county is San Marcos in?

San Marcos is the county seat of Hays County, Texas. It sits along Interstate 35 roughly midway between Austin and San Antonio, about 30 miles from each downtown, making it a practical base for commuters to either city.

What university is in San Marcos?

Texas State University is located in San Marcos. Its campus includes Spring Lake, the headwaters of the San Marcos River, and the university is the city's largest employer and cultural anchor.

What is the San Marcos River known for?

The San Marcos River is fed by one of Texas's largest spring systems and flows at a constant temperature year-round. It is popular for tubing, kayaking, paddleboarding, and swimming, with access points like Sewell Park and Rio Vista Park near downtown.

How far is San Marcos from Austin and San Antonio?

San Marcos sits roughly 30 miles south of downtown Austin and about the same distance north of downtown San Antonio along the Interstate 35 corridor, which makes it a practical home base for commuters traveling to either major city.

City Guide

About San Marcos

Real Estate & Housing

San Marcos' housing market spans a wide range. Older neighborhoods near downtown and the university hold mid-century homes, bungalows, and student-oriented rental properties, while the city's growth has pushed newer subdivisions outward. Communities such as Blanco Vista, Santa Fe Hills, and Discovery Hills offer contemporary single-family homes with neighborhood schools, pools, and parks. Townhomes and apartments cluster near campus and the outlet corridors. The mix of a large student rental market and family subdivisions gives San Marcos unusual variety, from starter homes and duplexes to larger new construction.

Neighborhoods

Blanco Vista, on the city's southwest side, is a family-oriented master-planned community with its own elementary school, pools, and parks feeding into San Marcos CISD. Discovery Hills and Santa Fe Hills offer established and value-conscious single-family options near elementary campuses, while Mockingbird Hills sits near the city's growing medical district. Closer to campus and downtown, older neighborhoods blend student rentals with owner-occupied homes. Hill Country-adjacent communities on the city's western edge provide larger lots and views, reflecting San Marcos' spread along the Interstate 35 and State Route 21 corridors.

Lifestyle in San Marcos

San Marcos combines a college-town energy with river-centered recreation. Residents float, paddle, and swim the spring-fed San Marcos River, gather at Sewell Park, and explore the greenways that line the water. Downtown's courthouse square and nearby streets host restaurants, bars, breweries, and live-music venues with deep local roots, while Texas State University adds athletics, performances, and lectures. The outlet malls make the city a regional shopping destination, and the surrounding Hill Country offers wineries, springs, and scenic drives. The result is an active, youthful culture anchored in the outdoors and music.

Schools & Education

Public education is provided by the San Marcos Consolidated Independent School District, which operates elementary, middle, and high schools across the city, including San Marcos High School. The district serves a growing and diverse student population, with newer campuses tied to the city's residential expansion. Texas State University anchors higher education and offers dual-enrollment and partnership opportunities for local students. Charter and private options add choice, and the university's presence enriches the broader educational landscape with research, libraries, and cultural programming.

Getting Around

Interstate 35 is San Marcos' primary corridor, placing downtown Austin and downtown San Antonio each roughly 30 miles away and making the city a practical base for commuting to either metro. State Route 21 and Ranch Road 12 connect the city to the Hill Country and to nearby communities like Wimberley. The San Marcos Premium Outlets sit at Exit 200, a major regional traffic generator. Amtrak's Texas Eagle stops in San Marcos, and the city sits along a growing transit corridor, though most residents rely on driving for daily travel.

Parks & Recreation

The San Marcos River is the city's defining recreational asset, with tubing, kayaking, paddleboarding, and swimming at Sewell Park, Rio Vista Park, and the river's many access points. The headwaters at Spring Lake and the Meadows Center offer glass-bottom boat tours and nature trails. A growing greenway and trail network follows the river and creeks, and nearby Hill Country destinations, including Canyon Lake, the Blanco River, and Jacob's Well, extend outdoor options. City parks, sports fields, and the university's recreational facilities round out the landscape.

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