The Mendocino County SELPA serves approximately 1,800 students. There are eleven school districts and the Mendocino County Office of Education in the Mendocino County SELPA. The districts are listed from the largest to the smallest: Ukiah Unified School District, Willits Unified School District, Fort Bragg Unified School District, Arena Elementary/Point Arena High School District, Mendocino Unified School District, Anderson Valley Unified School District, Mendocino County Office of Education, Laytonville Unified School District, Round Valley Unified School District, Potter Valley Unified School District, Leggett Unified School District and Manchester Unified School District. 

There are approximately 133 SELPAs in the State, ranging in size from those fewer than a 1,000 students to those serving more than 10,000 students. Each SELPA must have an Administrative Unit (AU) which is the legal entity that receives funds and is responsible for seeing that every eligible child received a Free Appropriate Public Education (FAPE). The Mendocino County Office of Education is the AU for the Mendocino County SELPA.

The Mendocino County SELPA provides support to the districts in the following areas:

• Program Development
• Program Availability to all Students with Disabilities
• Professional Development
• Parent Support and Training
• Alternative Dispute Resolution (ADR)
• Interagency Collaboration
• Management Information System (MIS)
• Fiscal Allocation and Monitoring