The total population for Cottage Grove is 39,926 as of 2021.
The City of Cottage Grove has seen rapid growth since 1970 and forecasts for our community show continued growth well into the future. The population figures come from the U.S. Census from the 2016 to 2020 American Community Survey. The projected growth totals are from the regional planning body of Minnesota called Metropolitan Council, which is in charge of planning for the Twin Cities metropolitan region.