About University of Massachusetts Amherst. University of Massachusetts Amherst in Amherst, MA reports an overall acceptance rate of 59.7%, an early-round acceptance rate of 61.2%, an SAT middle 50% of 1310–1460, a class size of 5,589, and a yield of 19.0% based on the most recent Common Data Set filings. Massachusetts flagship with non-binding EA. Strong CS (top-20 nationally), business, and engineering programs.