For the application year 2024, the University of California, San Diego reported a Regular Decision acceptance rate of 26.8%, with 21,590 out of 80,666 applicants being accepted. This figure marks the only complete data point in recent historical trends, as acceptance rates from previous years (2019-2023) remain unavailable. The acceptance rate of 26.8% is indicative of the overall competitiveness of UC San Diego's admissions process, with a substantial number of applicants vying for limited spots.