Lake Ronkonkoma is a city located in New York. Lake Ronkonkoma has a 2020 population of 20,780. Lake Ronkonkoma is currently declining at a rate of 0.00% annually and its population has increased by 3.10% since the most recent census, which recorded a population of 20,155 in 2010. Lake Ronkonkoma reached it's highest population of 21,164 in 2011.
The average household income in Lake Ronkonkoma is $107,386 with a poverty rate of 7.69%. The median rental costs in recent years comes to $1,472 per month, and the median house value is $352,000. The median age in Lake Ronkonkoma is 40 years, 38.7 years for males, and 41.4 years for females. For every 100 females there are 97.7 males.