Resident Population in West Carroll Parish, LA was 9.25400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in West Carroll Parish, LA reached a record high of 13.40000 in January of 1977 and a record low of 9.25400 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in West Carroll Parish, LA - last updated from the United States Federal Reserve on April of 2026.