General Contact Number: (530) 621-5567



image of envelope for subscription services
Subscribe to Redistricting Updates
More Information

California Election Code ยง 21500 et. seq. requires boards of supervisors to approve supervisorial district boundaries at least once following each federal decennial census so that district boundaries are "nearly equal in population as may be." Official 2010 U.S. Census data must be used to determine supervisorial district boundaries for future elections through 2020.

Base Map 6/27/2011

Click here to view adopted and prior map.  

What's New 

Board Items 

  • September 13, 2011 Agenda and Minutes with Link to past meeting actions (see item #38)

Redistricting Documents & Maps Archive