The enrollment at Johns Hopkins University varied depending on the program, but typically around 25,000 students. This includes undergraduate students and graduate students. The university has 9 divisions including the Krieger School of Arts and Sciences, the Whiting School of Engineering, the Carey Business School, the School of Education, the School of Medicine, the School of Nursing, the School of Advanced International Studies, the Peabody Institute, and the Bloomberg School of Public Health. Each division has its own specific enrollment numbers.
Keep in mind that the enrollment numbers may change over time, and I’m unable to provide more recent data because of my lack of access to updated information. I suggest you check the university’s website for the most current enrollment numbers.