Estimated Percent of People Age 0-17 in Poverty for Petroleum County, MT was 18.50% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People Age 0-17 in Poverty for Petroleum County, MT reached a record high of 32.90 in January of 2009 and a record low of 8.90 in January of 1993. 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 Petroleum County, MT - last updated from the United States Federal Reserve on May of 2024.