California State University (CSU) is not a country, but a public university system in the United States. It comprises 23 campuses and is one of the largest higher education systems globally. Rankings for CSU campuses vary by institution and criteria, such as academic programs, research output, and student satisfaction.
For example, Cal Poly San Luis Obispo often ranks highly among regional universities in the West, while San Diego State and Long Beach State are recognized for their diversity and value. Global rankings like QS or Times Higher Education typically focus on individual campuses rather than the entire CSU system.