New York is about 10 times smaller than Angola.

Angola is approximately 1,246,700 sq km, while New York is approximately 122,283 sq km, making New York 9.81% the size of Angola. Meanwhile, the population of Angola is ~34.8 million people (15.4 million fewer people live in New York).
Tip: This to-scale comparison of Angola vs. New York uses the Mercator projection, which distorts the size of regions near the poles.