San Marcos

San Marcos, Texas
San Marcos, the county seat of Hays County, is on Interstate Highway 35 twenty-five miles south of Austin in the southeastern part of the county. It was the site of several Spanish attempts at colonization before it became the center of Anglo-American settlement in the area. The first such attempt, in 1755, saw the short-lived establishment of the San Xavier missions and the presidio of San Francisco Xavier. These were relocated less than a year later, and the headwaters of the San Marcos River remained unsettled for another half century. In 1808 the Spanish governor of Texas, Manuel Antonio Cordero y Bustamante, sponsored the civil settlement of San Marcos de Neve near the same site, but floods and Indian raids prompted its abandonment in 1812. In November 1846 Thomas G. McGehee became the first Anglo-American to settle in the vicinity of the San Marcos Springs, but William W. Moon has been identified as the original resident of the site that became San Marcos proper. Moon was soon joined by other former members of John C. Hays's company of Texas Rangers and by Gen. Edward Burleson. Cayton Erhard opened the first store and post office by 1847, and the First Methodist Church began soon after. The Texas Legislature organized Hays County on March 1, 1848, and designated the young community as the county seat. San Marcos already had 387 residents. In 1851 General Burleson, William Lindsey, and Dr. Eli T. Merriman took possession of a 640-acre section of the Juan Veramendi grant and laid out the town center. Tarbox and Brown stagecoaches linked San Marcos with Austin and San Antonio in 1848, and the town began its development as the commercial center for the cart trade between area farmers and ranchers and coastal commission merchants. It also became a center for ginning and milling local agricultural products. Slowed for a while by the Civil War, the population in 1870 had grown only to 742, but in the decade following the arrival of the International-Great Northern Railroad on August 31, 1880, it reached 2,335. In that decade the town supported two banks, an opera house, and a variety of stores, saloons, and other businesses.
Adapted from the official Handbook of Texas, a state encyclopedia developed by the Texas State Historical Association (TSHA). It is an authoritative source of trusted historical records.
Daniel P. Greene | © Texas State Historical Association
San Marcos at a Glance
Belongs to
San Marcos is part of or belongs to the following places.
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Currently Exists
Yes
Place type
San Marcos is classified as a Town
Locations
-
- Latitude
- 29.87714880
- Longitude
- -97.93253600
Has Post Office
Yes
Is Incorporated
Yes
Photos of San Marcos and surrounding areas

San Marcos, Texas
The historic district in dowtown San Marcos, the seat of Hays County. Photograph by Larry D. Moore.

San Marcos by the Numbers
Population Counts
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Population Counts
San Marcos
Pop. | Year | Source |
---|---|---|
66,466 | 2019 | Texas Demographic Center |
44,894 | 2010 | Texas Demographic Center |
34,733 | 2000 | Texas Demographic Center |
28,738 | 1990 | Texas Demographic Center |
23,420 | 1980 | Texas Demographic Center |
18,860 | 1970 | Texas Demographic Center |
12,713 | 1960 | Texas Demographic Center |
9,980 | 1950 | Texas Demographic Center |
6,006 | 1940 | Texas Demographic Center |
5,134 | 1930 | Texas Demographic Center |
4,527 | 1920 | Texas Demographic Center |
4,071 | 1910 | Texas Demographic Center |
2,292 | 1900 | Texas Demographic Center |
2,335 | 1890 | Texas Demographic Center |
1,232 | 1880 | Texas Demographic Center |
741 | 1870 | Texas Demographic Center |