South Dayton is a city located in New York. With a 2020 population of 578, it is the 504th largest city in New York and the 12701st largest city in the United States. South Dayton is currently declining at a rate of -0.86% annually and its population has decreased by -6.77% since the most recent census, which recorded a population of 620 in 2010. South Dayton reached it's highest population of 619 in 2010. Spanning over 1 miles, South Dayton has a population density of 575 people per square mile.
The average household income in South Dayton is $47,284 with a poverty rate of 16.79%. The median rental costs in recent years comes to $688 per month, and the median house value is $61,300. The median age in South Dayton is 36 years, 33.9 years for males, and 37.4 years for females. For every 100 females there are 103.9 males.