Two of the most difficult colleges to get into in the United States are right here in Delaware County, writes Natasha Dado for CBS News.

On a list of 50 hard-to-get-into colleges prepared by Niche, Swarthmore ranked at No. 16.

Haverford College came in 40^th as the most difficult.

Niche runs a ranking and review website and used several criteria to determine its college rankings.

It looked at acceptance rates, standardized tests,s and other factors.

Swarthmore College has a 9 percent acceptance rate. It is known for its biology, economics, and information science programs.

It was ranked just above Rice University in Houston and just below Bowdoin College in Maine getting on to campus.

Haverford has an acceptance rate of 18 percent. Niche has also ranked it 14th out of 969 for best small colleges in America. 

It was ranked just above the University of Notre Dame and below the University of California, Berkeley.

The two Delaware County institutions are in good company, sharing the list with Harvard, Georgetown University the United States Air Force, Military and Naval Academies, Yale, Princeton, and, here at home, the University of Pennsylvania.

See the complete list of the most difficult colleges to get into in the United States at CBS News.

This woman explains why she was turned down at Stanford University.