Resident Population in Oneida County, NY was 227.55500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Oneida County, NY reached a record high of 275.00000 in January of 1972 and a record low of 227.55500 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Oneida County, NY - last updated from the United States Federal Reserve on May of 2024.