About Bates College. Bates College in Lewiston, ME reports an overall acceptance rate of 13.3%, an early-round acceptance rate of 27.1%, an SAT middle 50% of 1410–1490, a class size of 500, and a yield of 36.0% based on the most recent Common Data Set filings. Pioneer of test-optional admissions (since 1984). Known for rigorous academics, strong sense of community, and the annual Bates-Bowdoin-Colby rivalry (CBB consortium).