Buchanan is a very small city located in the state of Michigan. With a population of 4,169 people and two associated neighborhoods, Buchanan is the 215th largest community in Michigan.

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

In terms of college education, the citizens of Buchanan rank slightly lower than the national average. 13.14% of adults 25 and older in Buchanan have a bachelor's degree or advanced degree, while 21.84% of adults have a 4-year degree or higher in the average American community.

The per capita income in Buchanan in 2022 was $28,399, which is lower middle income relative to Michigan and the nation. This equates to an annual income of $113,596 for a family of four. However, Buchanan contains both very wealthy and poor people as well.

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

The most common language spoken in Buchanan is English. Other important languages spoken here include Other Indo-European and Italian.