Berlin is a somewhat small city located in the state of Wisconsin. With a population of 5,592 people and two associated neighborhoods, Berlin is the 147th largest community in Wisconsin. Much of the housing stock in Berlin was built prior to World War II, making it one of the older and more historic cities in the country.

The percentage of adults in Berlin who are college-educated is close to the national average for all communities of 21.84%: 19.37% of the adults in Berlin have a bachelor's degree or advanced degree.

The per capita income in Berlin in 2022 was $28,153, which is low income relative to Wisconsin, and lower middle income relative to the rest of the US. This equates to an annual income of $112,612 for a family of four. However, Berlin contains both very wealthy and poor people as well.

Berlin is a somewhat ethnically-diverse city. The people who call Berlin home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Berlin residents report their race to be White, followed by Native Hawaiian. Berlin also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 11.20% of the city’s residents. Important ancestries of people in Berlin include German, Polish, Irish, English, and Italian.

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