Rensselaer is a somewhat small city located in the state of Indiana. With a population of 5,632 people and two associated neighborhoods, Rensselaer is the 115th largest community in Indiana.

In terms of college education, Rensselaer is nearly on par with the US average for all cities of 21.84%: 18.44% of adults 25 and older in Rensselaer have a bachelor's degree or advanced degree.

The per capita income in Rensselaer in 2022 was $26,657, which is lower middle income relative to Indiana and the nation. This equates to an annual income of $106,628 for a family of four. However, Rensselaer contains both very wealthy and poor people as well.

Rensselaer is a very ethnically-diverse city. The people who call Rensselaer home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Rensselaer residents report their race to be White, followed by Black or African-American. Rensselaer also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 15.41% of the city’s residents. Important ancestries of people in Rensselaer include German, Irish, Polish, English, and Italian.

The most common language spoken in Rensselaer is English. Other important languages spoken here include Spanish and Polish.