ZIP Code 78666 Population
San Marcos, Texas
Population
75,968
Households
26,902
Median Age
24.7
Population Details
| Average Household Size | 2.82 persons |
|---|---|
| Data Source | US Census Bureau, 2012–2016 ACS 5-year estimates |
Frequently Asked Questions
ZIP code 78666 (San Marcos, TX) has a population of 75,968 according to US Census Bureau, 2012–2016 ACS 5-year estimates.
There are 26,902 households in ZIP code 78666.