Rensselaer is a city located in Indiana. With a 2020 population of 5,839, it is the 112th largest city in Indiana and the 4353rd largest city in the United States. Rensselaer is currently growing at a rate of 0.02% annually but its population has decreased by -0.34% since the most recent census, which recorded a population of 5,859 in 2010. Rensselaer reached it's highest population of 5,977 in 2010. Spanning over 7 miles, Rensselaer has a population density of 868 people per square mile.
The average household income in Rensselaer is $55,061 with a poverty rate of 15.94%. The median rental costs in recent years comes to $718 per month, and the median house value is $114,900. The median age in Rensselaer is 40 years, 37.6 years for males, and 42.1 years for females. For every 100 females there are 95.8 males.