Coldspring is a city in San Jacinto County, Texas, United States. It is the county seat of San Jacinto County which is named after the river that traverses it and shares its name with the battle which gave Texas its independence. The population was 853 at the 2010 census.
The history of Coldspring is linked to Stephen F. Austin's first colony in Texas, which established, among other locales, San Jacinto County. Austin's original colony extended to the Trinity River watershed, roughly along Texas 156, toward Point Blank. After receiving a commission from the Mexican government to settle the town, Joseph Vehlein, a German immigrant to Mexico, deeded 640 acres (2.6 km2) to Robert Rankin, an American Revolutionary officer. This acreage included the site of Coldspring.
The settlement of Cold Springs (old spelling) began around 1850. In 1848, there existed only a trading post called "Coonskin", later "Fireman's Hill" nearby.
Coldspring had developed into a bustling county seat town by 1915, but disaster struck March 30, 1915, when the wooden courthouse burned, thus removing the economic foundation of the town.