
San Ygnacio
- County:
- Zapata County
- County Seat:
- No
- Area (mi²):
- 1.522
- State:
- Texas
San Ygnacio is a CDP located in Zapata County, Texas. San Ygnacio has a 2025 population of 571. San Ygnacio is currently declining at a rate of -1.04% annually but its population has increased by 17.98% since the most recent census, which recorded a population of 484 in 2020.
The average household income in San Ygnacio is $79,104 with a poverty rate of 10.71%. The median age in San Ygnacio is 50.4 years: 46.4 years for males, and 51.4 years for females.