DETROIT Detroit has lost more residents since 2010 than any other big city in the nation, closing out the last decade with another year of falling population, new census figures show. The estimates released Thursday come as the 2020 census is underway. But as of May 19, Detroits response rate for the latest census was 46% one of the lowest of the nations big cities, according to The Detroit News. For us to get the resources we deserve, we need to make sure everyone is counted, said Kerry Ebersole Singh, executive director of the Michigan 2020 Census. Michigans population overall grew slightly in 2019, by nearly 2,800 residents to just under 10 million, according to census estimates.