Rensselaer is a somewhat small city located in the state of Indiana. With a population of 5,677 people and two associated neighborhoods, Rensselaer is the 115th largest community in Indiana.

Residents of the city have the good fortune of having one of the shortest daily commutes compared to the rest of the country. On average, they spend only 18.35 minutes getting to work every day.

The education level of Rensselaer citizens, measured as those with bachelor's degrees or advanced degrees, is similar to the national average for all American cities and towns. 18.35% of adults 25 and older in Rensselaer have a college degree.

The per capita income in Rensselaer in 2022 was $28,888, which is middle income relative to Indiana, and lower middle income relative to the rest of the US. This equates to an annual income of $115,552 for a family of four. However, Rensselaer contains both very wealthy and poor people as well.

Rensselaer is a somewhat 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. Important ancestries of people in Rensselaer include German, Irish, English, Polish, and Swedish.

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