Reports of Interest
- City Spheres of Influence Report
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View the City Spheres of Influence Report
(as of June 24, 2020): A report prepared by LAFCO staff for the Commission that includes a chart summarizing city spheres, maps detailing their history, and important farmlands within and around the spheres.
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View the City Spheres of Influence Report
- 2017 Islands Report
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View the 2017 Islands Report
(as of February 22, 2017): A report summarizing unincorporated islands and other areas surrounded by city limits, along with recent legislation affecting annexations in these areas.
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View the 2017 Islands Report
- View the 50-Year Summary (with information as of Dec. 31, 2010)
- View the 2019 Update (chart with updated data as of Dec. 31, 2019)
Annual City Annexation Summary
LAFCO staff compiles data for each city in January summarizing annexations that have occurred in the previous year, as well as those in the past decade.
Featured Information
Government Resources
- California Association of Local Agency Formation Commissions (CALAFCO)
- County Directory for California Association of Local Agency Formation Commissions
- Government Compensation in California - Public Employee Salaries
- Enterprise System Catalog (SB272)
Helpful Guides
- Guide to the Cortese-Knox-Hertzberg Local Government Reorganization Act of 2000 [PDF format - Dec. 2023]
- 50 Years of LAFCOs: A Guide to LAFCOs - California's Local Agency Formation Commissions [PDF format - Dec. 2013]
- What's So Special About Special Districts? - A Citizen's Guide to Special Districts in California [PDF format - Oct. 2010]
- Little Hoover Commission Special Districts: Improving Oversight & Transparency
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