Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Yellowstone County, MT was 30.84% in January of 2022, according to the United States Federal Reserve. Historically, Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Yellowstone County, MT reached a record high of 33.25 in January of 2012 and a record low of 28.78 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Yellowstone County, MT - last updated from the United States Federal Reserve on May of 2024.