THIS IS A SIMPLIFIED VERSION OF THE SUPERVISORIAL DISTRICTS LAYER.  It used a 5 foot tolerance to remove vertices.  The main authoritative version of this layer is forthcoming on the eGIS LA County Open Data Hub.  COUNTY OF LOS ANGELES, CA.

Redistricting occurs in the County of Los Angeles every 10 years, following the federal census, to redraw the boundaries of the County's five supervisorial districts to reflect new and shifting populations. In prior redistricting cycles, the Board of Supervisors was responsible for redrawing the County's district boundary lines, with the assistance of an advisory Boundary Review Committee. In 2016, the State Legislature approved Senate Bill 958 amending the Elections Code to require an independent 14-member Citizens Redistricting Commission to adjust the boundary lines of the supervisorial districts in the year following the decennial census. This redistricting cycle will be the first time the County's supervisorial district boundaries will be redrawn by the independent Citizens Redistricting Commission.

On the evening of December 15, 2021 Preliminary Supervisorial Districts were finalized and posted by the Los Angeles County Citizen Redistricting Commission (CRC). This is the preliminary linework of the district boundaries, and an official delineation from RRCC will be forthcoming.