Income Inequality in Carter County, MT was 11.20334 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Carter County, MT reached a record high of 39.42873 in January of 2010 and a record low of 10.64982 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Carter County, MT - last updated from the United States Federal Reserve on May of 2024.