Lake Grove is a city located in New York. With a 2020 population of 11,011, it is the 76th largest city in New York and the 2888th largest city in the United States. Lake Grove is currently declining at a rate of -0.31% annually and its population has decreased by -1.36% since the most recent census, which recorded a population of 11,163 in 2010. Lake Grove reached it's highest population of 11,232 in 2011. Spanning over 3 miles, Lake Grove has a population density of 3,726 people per square mile.
The average household income in Lake Grove is $129,981 with a poverty rate of 4.84%. The median rental costs in recent years comes to $1,840 per month, and the median house value is $399,300. The median age in Lake Grove is 40.8 years, 40.2 years for males, and 42.1 years for females. For every 100 females there are 103.0 males.