
California State University, San Marcos has a Regular Decision acceptance rate of 95.7% for the application year 2024, with a total of 17,519 applicants and 16,765 accepted. Historically, acceptance rates have remained high, with 97.4% for 2023, 95.1% for 2024, and 93.8% for 2022, indicating a generally favorable trend for applicants. However, as recently as 2020, the acceptance rate was significantly lower at 79.4%, illustrating a marked improvement in the admissions landscape over the last few years. Rates from previous years show a dramatic increase from just 62% in 2019 and 58% in 2018, highlighting an ongoing upward trajectory in acceptance rates at this institution.