Resident Population in Christian County, IL was 33.22800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Christian County, IL reached a record high of 37.30000 in January of 1976 and a record low of 32.42700 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Christian County, IL - last updated from the United States Federal Reserve on May of 2024.