This polygon shapefile depicts officially approved Municipal boundaries for incorporated areas of the County of Solano, California. These boundaries have been approved by the Local Agency Formation Commission (LAFCO) of Solano County. LAFCO was created in 1963 to encourage orderly formation of local government agencies, preserve agricultural land resources and discourage urban sprawl. LAFCos are responsible for coordinating logical and timely changes in local governmental boundaries, conducting special studies that review ways to reorganize, simplify, and streamline governmental structure and preparing a sphere of influence for each city and special district within each county. This layer is part of a collection of GIS data produced by Solano County, California. Solano Regional Geographic Information Systems Consortium (Solano ReGIS) is a cooperative of local government agencies within Solano County, California, working together to share spatial data, pool resources, and provide GIS expertise to Solano ReGIS members, which include the Cities of Benicia, Dixon, Fairfield, Rio Vista, Suisun City, Vacaville and Vallejo; the County of Solano; the Fairfield-Suisun Sewer District; the Local Agency Formation Commission (LAFCO); the Solano County Water Agency; the Solano Irrigation District; the Solano Transportation Authority; and the Vallejo Sanitation and Flood Control District. These Solano ReGIS members provide public access to applications, maps and spatial data. Solano County encompasses 7 cities and approximately 425,000 people. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. Solano Regional GIS Consortium. (2015). Municipal Boundaries (Polygons): Solano County, California, 2015. Solano Regional GIS Consortium. (2015). County Boundary (Line): Solano County, California, 2015. Solano County, California. Available at: http://purl.stanford.edu/sn288qn5252. Solano Regional GIS Consortium provides GIS layers for general mapping use only and does not provide legally authoritative data. The user assumes responsibility for any decisions made using Solano ReGIS sourced data.