New York is around the same size as Nicaragua.

Nicaragua is approximately 130,370 sq km, while New York is approximately 122,283 sq km, making New York 93.8% the size of Nicaragua. Meanwhile, the population of Nicaragua is ~6.3 million people (13.1 million more people live in New York).
Tip: This to-scale comparison of Nicaragua vs. New York uses the Mercator projection, which distorts the size of regions near the poles.