Air Quality Districts

Find your Air Quality District

Sonoma County is served by two air quality districts with distinct boundaries, jurisdictions, rules, and policies.

To determine which district your residence or business is in, please enter your address in the interactive map below.

Northern Sonoma County Air Pollution Control District (NSCAPCD)

Address: 150 Matheson Street, Healdsburg, CA 95448  
Phone: (707) 433-5911
Website: https://nosocoair.org

NSCAPCD covers the northern and coastal regions of Sonoma County including Annapolis, Bodega, Bodega Bay, Camp Meeker, Cazadero, Cloverdale, Duncans Mills, Forestville, Geyserville, Gualala, Guerneville, Healdsburg, Jenner, Monte Rio, Rio Nido, and The Sea Ranch.

NSCAPCD also includes small portions of the following four towns: Windsor, Sebastopol, Occidental, and Valley Ford as well as the part of Calistoga within Sonoma County.

Bay Area Air Quality Management District (BAAQMD)

Address: 375 Beale Street, Suite 600, San Francisco, CA 94105 
Phone: (415) 749-4900
Website: http://baaqmd.gov

BAAQMD extends throughout the southern portion of Sonoma County including Bloomfield, Cotati, Glen Ellen, Graton, Kenwood, Penngrove, Petaluma, Rohnert Park, Santa Rosa, and Sonoma.

BAAQMD also includes portions of the following four towns: Windsor, Sebastopol, Occidental, and Valley Ford.