Supervisorial District Maps

2011 Redistricting Maps

Supervisorial Boundary Lines 2011

Map Book
Base Plan

State of California Guidebook
Redistricting Basics
Redistricting Terms

Redistricting Resources
The University of California, Berkeley is opening regional redistricting technical assistance centers across the State, funded by the James Irvine Foundation. The purpose of these centers is to provide Californians access to data, software, and expertise so that they can effectively communicate valuable information about their communities to the Commission.

Sacramento /Northern California Region:

Central Library, 2nd Floor, 828 I Street, Sacramento, CA 95814

Manager: Robin Evans –

Phone: 916-248-8900