Cost of living in San Marcos, TX

San Marcos is a Census city in Caldwell County, TX. ACS 2024 5-year population is 70,897. Median gross rent is $1,322 (ACS 2024 5-year, this place). Median home value is $310,400. Median household income is $51,281. Insurance is the NAIC state average; food is a USDA plan — no town indexes.