Estimated Percent of People Age 0-17 in Poverty for Custer County, MT was 14.80% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People Age 0-17 in Poverty for Custer County, MT reached a record high of 25.70 in January of 1998 and a record low of 13.40 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of People Age 0-17 in Poverty for Custer County, MT - last updated from the United States Federal Reserve on May of 2024.