Resident Population in Santa Rosa County, FL was 203.16200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Santa Rosa County, FL reached a record high of 203.16200 in January of 2023 and a record low of 37.74100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Santa Rosa County, FL - last updated from the United States Federal Reserve on May of 2024.