Based on data from the 2010 United States Census an increase of 3,087 ( 7.8 % ) from the 39,332 counted in 2000 .
The 2010 United States Census is the population of Dyker Heights was 42,419 .
Based on data from the 2010 United States Census , the population of Dyker Heights was 42,419 , an increase of 3,087 ( 7.8 % ) from the 39,332 counted in 2000 .