Allegan is a somewhat small city located in the state of Michigan. With a population of 5,162 people and five associated neighborhoods, Allegan is the 188th largest community in Michigan. Allegan has a large stock of pre-World War II architecture, making it one of the older and more historic cities in the country.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 8.60% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The percentage of adults in Allegan with college degrees is slightly lower than the national average of 21.84% for all communities. 15.31% of adults in Allegan have a bachelor's degree or advanced degree.

The per capita income in Allegan in 2022 was $24,191, which is low income relative to Michigan and the nation. This equates to an annual income of $96,764 for a family of four. However, Allegan contains both very wealthy and poor people as well.

Allegan is a somewhat ethnically-diverse city. The people who call Allegan home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Allegan residents report their race to be White, followed by Black or African-American. Important ancestries of people in Allegan include German, English, Irish, Dutch, and Italian.

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