Resident Population in Acadia Parish, LA was 56.60400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Acadia Parish, LA reached a record high of 62.83000 in January of 2016 and a record low of 52.10900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Acadia Parish, LA - last updated from the United States Federal Reserve on April of 2026.