I've compiled the following list of schools in the United States and Canada that have undergraduate programs in astronomy. The list is taken from the AIP Directory of Physics and Astronomy Graduate Programs, Lovejoy's College Guide and The Petersen Guide. Clicking on the name will connect you to the school's home page . . . . at least where I could find a link (some links are not yet working). I hope this will help you narrow the list of colleges you are thinking about attending.
Please Note: Despite considerable effort, links seems to change faster than they can be checked. I apologize for dead ones.