Parents at P.S. 183, who worked with Councilman Ben Kallos to increase the total seats on the Upper East Side from just over 123 to 515 since 2014, say they are relieved to have more pre-K seats because it can be tough getting a spot in the neighborhood.

"As an Upper East Side parent, I am concerned not only about the chances of my own child obtaining a pre-K spot in the neighborhood but also about the children of my friends and neighbors," resident Ariel Chesler said. "That is why I have been speaking out about the insufficient number of seats in the area."

For more than a year, members of the Roosevelt Island Parents' Network, which advocates for more than 500 families' needs, also worked to get more free pre-K seats on the island, according to member Eva Bosbach.