Resident Population in Ray County, MO was 23.18200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Ray County, MO reached a record high of 23.69200 in January of 2006 and a record low of 17.59900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Ray County, MO - last updated from the United States Federal Reserve on May of 2024.