Supervisor District 3

District 3 includes the Brunswick Basin, Cedar Ridge, the City of Grass Valley, Squirrel Creek, and the La Barr Meadows / Allison Ranch Road neighborhoods.

Supervisor Lisa Swarthout

District 3 is represented by Supervisor Swarthout, who was first elected in November 2022. She was sworn in and began her first term in January 2023.

Learn more about Supervisor Swarthout.

View a list of District 3 Supervisors, from 1856 to the present.

Committees & Commissions


  • Area 4 Agency on Aging Governing Board
  • Regional Housing Authority
  • Solid and Hazardous Waste Commission


  • Economic Resource Council of Nevada County (ERC)
  • Local Agency Formation Commission (LAFCo)
  • Northern Rural Training Employment Consortium (NoRTEC)
  • Operational Area Emergency Services Council
  • Rural County Representatives of California (RCRC)
    • Golden State Finance Authority
    • Golden State Connect Authority
  • Sierra Sacramento Valley Emergency Medical Services Joint Powers Authority Governing Board
  • Transit Services Commission

Supervisor Swarthout's Priorities

Each year, the Board of Supervisors adopts a set of objectives to guide county operations, programs, and services. Check back in the coming weeks for more information about Supervisor Swarthout's priorities.

District 3 News

Special Projects

Mining IconIdaho-Maryland Mine

Click here to find related environmental documents, and here to find the economic impact report.