Yaphank is a city located in New York. Yaphank has a 2020 population of 6,390. Yaphank is currently declining at a rate of 0.00% annually and its population has increased by 7.49% since the most recent census, which recorded a population of 5,945 in 2010. Yaphank reached it's highest population of 6,390 in 2018.
The average household income in Yaphank is $108,666 with a poverty rate of 4.16%. The median rental costs in recent years comes to $2,125 per month, and the median house value is $311,300. The median age in Yaphank is 38.4 years, 37.4 years for males, and 40.7 years for females. For every 100 females there are 130.7 males.