You should check with your insurance company to be sure, but typically, renters insurance policies cover personal belongings even when you're away from your college residence. To check with your insurance company, you can either check your delcaration page, or call your agent to confirm if there is any exclusion in terms of your eligibility.
The information in this answer is general in nature and is not legal or insurance advice for your specific situation. Policy language varies carrier by carrier; your declarations page is the final word. If you're unsure, call your agent before you need to file.