Unfortunately, the inability to obtain a list of your denomination's students who attend your area college/university isn't a myth at most campus ministries. Most colleges/universities will not provide names and contact information of students, even if the students voluntarily disclose their religious preference to the school.
It also may be challenging and time-consuming to try to get this information from your denomination's churches that have students who attend your area college/university - not because they're opposed to providing it, but because many of them simply don't get around to it.
One possible solution is to find and train a volunteer who is willing and able to take responsibility for contacting churches in your region to gather college students' names and contact information on your behalf. I don't know who that person is, but I can help you find and train him/her. Contact me at firstname.lastname@example.org to learn more.