Note: The Sonoma Valley Urban Service Area was revised by the Board of Supervisors as part of the Sonoma Developmental Center Specific Plan (File PLP22-0024) adopted by Ordinance 6400 and General Plan Resolution 22-0556 on December 16, 2022. The Sonoma Valley Urban Service Areas expanded into the SDC core campus portion of APN 054-090-001, and was removed from the SDC open space portion of APN 054-150-005.

The Urban Service Areas (USA) dataset represents the designated limit to the urban development of unincorporated communities per Sonoma County's General Plan 2020 as adopted on September 23, 2008 by Resolution No. 08-0808.

Currently, there are 21 unincorporated urban service communities within Sonoma County. The communities are limited to urban development through urban services which is the full range of public services and infrastructures including sewer, water, police and fire protection, roads, transit, etc. Per General Plan Land Use 2020 adopted on 09/23/2008 by the Board of Supervisors, USA's were updated to reflect changes in service areas, spheres of influence and city urban growth boundaries (Reso. No. 08-0808).

To note, according to 2012 California Environmental Quality Act (CEQA) Guidelines Chapter 2.5 Definitions addresses "Urbanized Area" and defines "urban growth boundary" as a provision of a locally adopted general plan that allows urban uses one side of the boundary and prohibits urban uses on the other side.

The 21 Urban Service Areas are as follows:

• Airport

• Bodega Bay

• Cloverdale

• Cotati

• Forestville

• Geyserville

• Graton

• Guerneville

• Healdsburg

• Larkfield

• Monte Rio

• Occidental

• Penngrove

• Petaluma

• Rohnert Park

• Santa Rosa

• Sea Ranch

• Sebastopol

• Sonoma

• Sonoma Valley

• Windsor

Note: The Sonoma Valley Urban Service Area was revised by the Board of Supervisors as part of the Sonoma Developmental Center Specific Plan (File PLP22-0024) adopted by Ordinance 6400 and General Plan Resolution 22-0556 on December 16, 2022. The Sonoma Valley Urban Service Areas expanded into the SDC core campus portion of APN 054-090-001, and was removed from the SDC open space portion of APN 054-150-005.

The Urban Service Areas (USA) dataset represents the designated limit to the urban development of unincorporated communities per Sonoma County's General Plan 2020 as adopted on September 23, 2008 by Resolution No. 08-0808.

Currently, there are 21 unincorporated urban service communities within Sonoma County. The communities are limited to urban development through urban services which is the full range of public services and infrastructures including sewer, water, police and fire protection, roads, transit, etc. Per General Plan Land Use 2020 adopted on 09/23/2008 by the Board of Supervisors, USA's were updated to reflect changes in service areas, spheres of influence and city urban growth boundaries (Reso. No. 08-0808).

To note, according to 2012 California Environmental Quality Act (CEQA) Guidelines Chapter 2.5 Definitions addresses "Urbanized Area" and defines "urban growth boundary" as a provision of a locally adopted general plan that allows urban uses one side of the boundary and prohibits urban uses on the other side.

The 21 Urban Service Areas are as follows:

• Airport

• Bodega Bay

• Cloverdale

• Cotati

• Forestville

• Geyserville

• Graton

• Guerneville

• Healdsburg

• Larkfield

• Monte Rio

• Occidental

• Penngrove

• Petaluma

• Rohnert Park

• Santa Rosa

• Sea Ranch

• Sebastopol

• Sonoma

• Sonoma Valley

• Windsor