Trump was widely expected to beat his rivals Ted Cruz and John Kasich in Tuesday's election. The precise allocation of delegates from the state won't be determined until the vote results are calculated by congressional district, but Trump is certain to extend his delegate lead and come closer to the 1,237 delegates required to clinch the party's nomination.
Early results of the exit poll in the state show a large majority of New York Republicans want the next president to be a political outsider.
As of Tuesday afternoon, Trump had amassed 756 delegates, while Cruz had 559 and Kasich had 144.
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Clinton beat out rival Bernie Sanders in Tuesday's election, further extending her lead in the delegates needed to win the Democratic nomination.
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Most Democratic primary voters see Clinton as the best candidate to face Trump if he is the Republican nominee in November, and 7 in 10 see her as the most likely eventual nominee.
Before Tuesday, Clinton led Sanders 1,292 to 1,042 in the delegate count. When including superdelegates, the AP count had Clinton at 1,761 and Sanders at 1,073.
Most of New York's Democratic delegates are awarded on a proportional basis by the outcome in each congressional district. New York has 247 pledged delegates at stake.
The fight for New York's delegate haul has consumed the presidential contenders for two weeks, an eternity in the fast-moving White House race. Candidates blanketed every corner of New York, bidding for votes from Manhattan and the surrounding boroughs to the working class cities and rural enclaves that dot the rest of the state.
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