In the mid-eighteenth century, the American colonies could boast of only six colleges—Harvard and Yale in New England; William and Mary in Virginia; and the three fledgling institutions in the middle colonies, King's College (Columbia), the College of New Jersey (Princeton), and the College of Philadelphia (University of Pennsylvania). With the exception of William and Mary, these institutions were located on the northeastern seacoast, enrolled mostly local students, followed a scholastic course of study within a regentship system, and had few graduates. The number of college-educated males in the colonial population in the early 1760s is estimated at only one per thousand.