San Marcos is a city and the county seat of Hays County, Texas, United States. It has a population of about 65.000. It was founded on the bank of San Marcos river and it’s one of the oldest communities in the Americas, the settlement was made in 1689. The city is listed as the fourth-best one to raise your kids in. It’s located near a highway which makes it a good place to start a business. Texas state university is located in San Marcos and it’s one of the biggest employers.