Petersburg is a very small city located in the state of Indiana. With a population of 2,269 people and two associated neighborhoods, Petersburg is the 220th largest community in Indiana. Petersburg has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

Residents will find that the city is relatively quiet. This is because it is not over-populated, and it has fewer college students, renters, and young children - all of whom can be noisy at times. So, if you're looking for a relatively peaceful place to live, Petersburg is worth considering.

As is often the case in a small city, Petersburg doesn't have a public transportation system that people use for their commute.

In Petersburg, just 9.06% of people over 25 hold a college degree, which is very low compared to the rest of the nation, whereas the average among all cities is 21.84%.

The per capita income in Petersburg in 2022 was $31,019, 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 $124,076 for a family of four. However, Petersburg contains both very wealthy and poor people as well.

The people who call Petersburg home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Petersburg residents report their race to be White, followed by Black or African-American. Important ancestries of people in Petersburg include English, German, Irish, Scottish, and Scots-Irish.

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