Estimated Percent of Related Children Age 5-17 in Families in Poverty for Union County, SD was 5.50% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of Related Children Age 5-17 in Families in Poverty for Union County, SD reached a record high of 13.40 in January of 1989 and a record low of 4.70 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of Related Children Age 5-17 in Families in Poverty for Union County, SD - last updated from the United States Federal Reserve on May of 2024.