Ballston Spa is a city located in New York. With a 2020 population of 5,178, it is the 166th largest city in New York and the 4652nd largest city in the United States. Ballston Spa is currently declining at a rate of -0.94% annually and its population has decreased by -4.27% since the most recent census, which recorded a population of 5,409 in 2010. Ballston Spa reached it's highest population of 5,556 in 2000. Spanning over 2 miles, Ballston Spa has a population density of 3,235 people per square mile.
The average household income in Ballston Spa is $80,165 with a poverty rate of 8.99%. The median rental costs in recent years comes to $1,001 per month, and the median house value is $222,200. The median age in Ballston Spa is 42.1 years, 39 years for males, and 46.7 years for females. For every 100 females there are 85.8 males.