(1) Deep Springs College:
Deep Springs College in Inyo County, California, located on a cattle range and Alfalfa farm. Deep Springs admits highly exceptional students into its college. It might interest you to know that many of their admitted students had turned down offers from some of the most prestigious colleges in the US to seal a place in Deep Springs.
The College admission officers when reviewing your applications will look for academic ability, leadership/service potential and a strong desire to take on an active and practical responsibilty for the Deep Springs community.
Selectivity rate varies from 6% to 15% every year. Accepted students usually average 700 on the SAT Maths and Critical reading sections. However, Deep Springs admission officers would look for more academic promise, but a students ability to contribute positively to their community. Hence, the admissions team will regard your essay and interview as important admission factors.

(2) Cooper Union: Read More : http://www.studyabroad365.com/top-9-american-colleges-operating-free-tuition-sats-scores-and-selectivity-rate/