Net County-to-County Migration Flow (5-year estimate) for Gratiot County, MI was 31.00000 Persons in January of 2020, according to the United States Federal Reserve. Historically, Net County-to-County Migration Flow (5-year estimate) for Gratiot County, MI reached a record high of 651.00000 in January of 2013 and a record low of -526.00000 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Net County-to-County Migration Flow (5-year estimate) for Gratiot County, MI - last updated from the United States Federal Reserve on May of 2024.