Resident Population in Oneida County, WI was 38.22600 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Oneida County, WI reached a record high of 38.28200 in January of 2021 and a record low of 24.42700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Oneida County, WI - last updated from the United States Federal Reserve on May of 2024.