San Marcos grew up around springs that have never run dry in recorded history and around a university that now enrolls about 47,500 students. A young, mobile population and a fault line through town both shape its pest problems.
San Marcos is the Hays County seat, 30 miles southwest of Austin and 51 miles northeast of San Antonio on Interstate 35, at an elevation of 574 feet. The 2020 census counted 67,553 residents with a median age of 23.7, a number that reflects Texas State University, established in 1899. The San Marcos Springs rise from the Edwards Aquifer into Spring Lake and feed the river, which the Blanco River joins four miles downstream.
The city sits on the Balcones Fault. West of it are rolling, often rocky hills dotted with cactus; the eastern part is Blackland Prairie. Downtown was laid out in 1851 and there are five residential historic districts, so a rental near campus can be generations older than a house on the edge of town. Precision Pest Control works with San Marcos landlords, homeowners and businesses and quotes every job free.