Every ten years, districts must be redrawn so that each district is substantially equal in population. This process, called redistricting, is important in ensuring each board member represents about the same number of constituents. In Lake County, the Board of Supervisors is responsible for drawing Supervisorial Districts. Redistricting is done using U.S. Census data, which is typically released around March 31, 2021. For the County of Lake, the Redistricting process must be completed by December 15, 2021.