Estimated Percent of People of All Ages in Poverty for St. Clair County, MO was 19.80% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People of All Ages in Poverty for St. Clair County, MO reached a record high of 26.40 in January of 2013 and a record low of 16.80 in January of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of People of All Ages in Poverty for St. Clair County, MO - last updated from the United States Federal Reserve on May of 2024.