To enroll at Santa Ana College, part of the Rancho Santiago Community College District, applicants must be at least 18 years old or possess a high school diploma or equivalent. California residency is required for in-state tuition fees, though non-residents may enroll at higher rates. International students need an F-1 visa and proof of English proficiency. Dual enrollment is available for high school students with parental consent. Some programs may have additional prerequisites, such as placement tests or specific coursework. All applicants must complete an online application and submit transcripts if seeking credit for prior education.