Hello, the average age of college students is between 18 and 25. This is because in China, universities are generally considered after graduating from high school, and the graduation age of high school is generally around 18 years old. Generally, the undergraduate course lasts for 4 years, the postgraduate course lasts for 2-3 years and the doctor course lasts for 3-5 years, so the age of college students will be different. In addition, some people may choose to consider going to college after working for a period of time, so there will also be some older college students. But generally speaking, the age of college students is between 18-25. At this age, college students are receiving higher education, accumulating knowledge and skills and laying a foundation for future development.