Resident Population in San Patricio County, TX was 70.66000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in San Patricio County, TX reached a record high of 70.66000 in January of 2023 and a record low of 47.28800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in San Patricio County, TX - last updated from the United States Federal Reserve on May of 2024.