Regular Precinct Number = Five Digit Code
Starting from the left, the first digit represents Supervisorial District: 10901
- 1 – Supervisorial District 1
- 2 – Supervisorial District 2
- 3 – Supervisorial District 3
- 4 – Supervisorial District 4
- 5 – Supervisorial District 5
The second and third digits represent the City/Town: 10901
- 01 – Belvedere
- 02 – Corte Madera
- 03 – Fairfax
- 04 – Larkspur
- 05 – Mill Valley
- 06 – Novato
- 07 – Ross
- 08 – San Anselmo
- 09 – San Rafael
- 10 – Sausalito
- 11 – Tiburon
- 12 – Unincorporated
Last two digits are sequential numbering within Supervisorial Districts: 10901
Voting Precinct Number = Six Digit Code
Consolidated Precincts (two or more regular precincts combined):
The first digit represents Supervisorial District: 109019
The second and third digits represents the City/Town: 109019
The last digit is a nine (9): 109019
Non-Consolidated Precincts (same as a regular precinct with a zero added):
The first digit represents Supervisorial District: 109010
The second and third digits represents the City/Town: 109010
The last digit is a zero (0): 109010
Mail Ballot Precincts (consolidated and non-consolidated precincts):
The first digit is a six (6): 610901
The second digit represents Supervisorial District: 610901
The third and forth digits represent the City/Town: 610901