Early care and education (ECE) can have a positive effect on many aspects of children’s development, including the language, literacy, mathematics, executive functioning, and social-emotional competencies needed for a smooth transition into kindergarten and later life success. But for many families, high-quality ECE is out of reach. California has established a range of programs to support the development of children from birth to age 5, but these programs are uncoordinated, insufficient in scope, and of variable quality. This report provides a comprehensive overview of the state’s ECE system, describing its administration and funding, access to care, program quality, and data limitations.