St. Johns is a somewhat small city located in the state of Michigan. With a population of 7,699 people and four associated neighborhoods, St. Johns is the 145th largest community in Michigan.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 15.99% 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 education level of St. Johns citizens is a little higher than the average for US cities and towns: 22.94% of adults in St. Johns have at least a bachelor's degree.

The per capita income in St. Johns in 2022 was $35,934, which is upper middle income relative to Michigan, and middle income relative to the rest of the US. This equates to an annual income of $143,736 for a family of four. However, St. Johns contains both very wealthy and poor people as well.

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

The most common language spoken in St. Johns is English. Other important languages spoken here include Polish and Italian.