Resident Population in Jackson Parish, LA was 14.79700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Jackson Parish, LA reached a record high of 17.32100 in January of 1980 and a record low of 14.79700 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jackson Parish, LA - last updated from the United States Federal Reserve on April of 2026.