Petersburg is a medium-sized city located in the state of Virginia. With a population of 33,394 people and 19 associated neighborhoods, Petersburg is the 31st largest community in Virginia.

The citizens of Petersburg are slightly better educated than the national average of 21.84% for all cities and towns, with 21.76% of adults in Petersburg having a bachelor's degree or advanced degree.

The per capita income in Petersburg in 2022 was $28,146, which is lower middle income relative to Virginia and the nation. This equates to an annual income of $112,584 for a family of four. However, Petersburg contains both very wealthy and poor people as well.

Petersburg is a very ethnically-diverse city. 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 Black or African-American, followed by White. Important ancestries of people in Petersburg include African, English, German, Italian, and Irish.

The most common language spoken in Petersburg is English. Other important languages spoken here include Spanish and German/Yiddish.