Smithtown is a city located in Suffolk County New York. Smithtown has a 2020 population of 115,268. Smithtown is currently declining at a rate of -0.33% annually and its population has decreased by -2.20% since the most recent census, which recorded a population of 117,858 in 2010. Smithtown reached it's highest population of 118,189 in 2011.
The average household income in Smithtown is $155,484 with a poverty rate of 3.01%. The median rental costs in recent years comes to $1,793 per month, and the median house value is $486,300. The median age in Smithtown is 45.6 years, 43.9 years for males, and 46.9 years for females.