(Stockton, CA) - San Joaquin County’s Board of Supervisors adopted new supervisorial district boundaries after considerable public input and Board deliberation at their public hearing on December 7, 2021. These new boundaries derive from a Redistricting Advisory Committee (RAC) recommended map.
The new supervisorial district boundaries are the culmination of more than ten months of effort that began on January 26, 2021, when the Board of Supervisors approved the 2021 Supervisorial Redistricting Plan which included the creation of a Redistricting Advisory Committee (RAC). The RAC held nine hybrid in-person/virtual public meetings: three scheduled training sessions, three scheduled outreach workshops (August 17, 2021, in Stockton, September 15, 2021, in Tracy, and September 29, 2021, in Lodi), and three scheduled public meetings (October 13, 2021, October 27, 2021, and November 10, 2021).
On November 10, 2021, the RAC’s final public meeting, the RAC voted unanimously to recommend two maps to the Board of Supervisors - these two maps were based on 37 maps submitted by the public and elevated by staff, RAC direction and input, identified community of interest goals, policy themes, and compliance with the Voting Rights Act and other legal requirements. At the November 16, 2021 Board of Supervisors hearing, after Board deliberation, the Board voted to adopt a final supervisorial district map at the public hearing on December 7, 2021.
2020 Census Data
The California Elections Code §21500 requires Counties to use the 2020 census data to create supervisorial districts that have substantially equal populations. The following table depicts the population identified in the 2020 census by supervisorial district, the ideal population size per district (total population divided by the 5 districts), and the population totals for the new supervisorial districts.
Supervisorial District | Prior Districts with 2020 Population | Ideal Population | New Districts With 2020 Population |
| One | 144,715 | 155,462 | 161,381 |
| Two | 157,898 | 155,462 | 160,184 |
| Three | 153,768 | 155,462 | 151,997 |
| Four | 143,587 | 155,462 | 146,525 |
| Five | 177,345 | 155,462 | 157,226 |
| Totals: | 777,313 | 777,310 | 777,313 |
“The Board of Supervisors adopted a supervisorial district map that best represents all of San Joaquin County’s residents. It’s a map that was recommended to the Board by the Redistricting Advisory Committee (RAC), and was based on the RAC’s outreach to the County's diverse communities of interests. I’m proud of the RAC and the Board for finalizing the map especially since there was a significant delay in the County receiving the updated 2020 census data, which is the basis for the maps,” said San Joaquin County Board of Supervisors Chairman Tom Patti.
To see the supervisorial district map adopted by the Board of Supervisors, visit the SJC redistricting website at We Draw the Lines | San Joaquin County (sjgov.org)
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