Kwasi Enin, a senior at William Floyd High School in Mastic Beach, applied to and was accepted by Brown, Columbia, Cornell, Dartmouth, Harvard, Princeton, Yale and the University of Pennsylvania.
"By applying to all eight, I figured it would better the chances of getting into one," Enin was quoted as saying by the 'New York Daily News'.
Enin scored a 2,250 on his SATs, which placed him in the 99th percentile for all students taking the exam.
Enin had already been accepted to Princeton in December, but heard from each of the remaining seven schools in last week of March.
Administrators at William Floyd were proud but not surprised by Kwasi's perfect Ivy League acceptance rate, saying he is an academic standout, according to 'Newsday'.
"I've never seen anything like it in my 15 years as a high school counsellor," said Nancy Winkler, Enin's guidance counsellor.
"He's going to be a leader in whatever he chooses," Winkler said.
Enin, the son of immigrant nurses from Ghana, has not decided where he will attend. He is waiting to review the financial aid packages he will be offered.
Enin said he wants to be a physician.
"I'm thinking of being a cardiologist or neurologist," said Enin, who lives in Shirley.
"A doctor is a community leader, a protector, someone who people turn to ... when they need help," he said.
The Ivy League is a group of eight prestigious private universities in the North-east of the US.
Collectively, the eight colleges accepted less than 9 per cent of their applicants this year, ranging from 5.9 per cent at Harvard to 14 per cent at Cornell.