Percent of Population Below the Poverty Level (5-year estimate) in Maries County, MO was 17.40% in January of 2022, according to the United States Federal Reserve. Historically, Percent of Population Below the Poverty Level (5-year estimate) in Maries County, MO reached a record high of 19.20 in January of 2015 and a record low of 14.30 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Percent of Population Below the Poverty Level (5-year estimate) in Maries County, MO - last updated from the United States Federal Reserve on May of 2024.