The U.S. Census Bureau, has released new population estimates for places and county subdivisions through 2018. Notes and commentary by Michigan's State Demographer Eric Guthrie, can be found at this link:

https://content.govdelivery.com/attachments/MIDEPTTMB/2019/05/23/file_attachments/1217233/Notes%20on%20the%202018%20Subcounty%20Estimates.pdf

For the MATS area, this data indicates a very slight population decline, on the order of .5%, from the 2010 Census totals.

This can be seen here:

https://documentcloud.adobe.com/link/track?uri=urn%3Aaaid%3Ascds%3AUS%3A1ffa9e8a-32c6-43a0-9c6d-e49fd4ee3858

For more Information

These estimates are available through the U.S. Census Bureau and are available on their population estimates page and through their data retrieval tool, American FactFinder.

Additionally, The Bureau of Labor Market Information and Strategic Initiatives makes many of the most commonly requested Census data and other labor market data available through http://milmi.org and http://michigan.gov/census.

To access current population projections for the State of Michigan and all of its counties, please visit: https://milmi.org/datasearch/popproj