On May 7, 2013, there are two Special Elections in San Mateo County:
- La Honda Pescadero Unified School District Special All Mail Ballot Election
- Portola Valley Elementary School District Special All Mail Ballot Election
The San Mateo County Democratic Party has formally endorsed Measure N (a local parcel levy in support of local schools) in the La Honda Pescadero Unified School District and Measure O (a parcel levy in support of schools) in the Portola Valley School District. For more information on the measures, please use the links provided above.