Resident Population in Hawaii County, HI was 209.79000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Hawaii County, HI reached a record high of 209.79000 in January of 2024 and a record low of 63.46800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Hawaii County, HI - last updated from the United States Federal Reserve on April of 2026.