St. Marys is a very small city located in the state of West Virginia. With a population of 1,808 people and two associated neighborhoods, St. Marys is the 114th largest community in West Virginia.

Also of interest is that St. Marys has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in St. Marys telecommute to their jobs. Overall, about 9.62% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. 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.

Being a small city, St. Marys does not have a public transit system used by locals to get to and from work.

The percentage of adults in St. Marys who are college-educated is close to the national average for all communities of 21.84%: 18.71% of the adults in St. Marys have a bachelor's degree or advanced degree.

The per capita income in St. Marys in 2022 was $37,124, which is wealthy relative to West Virginia, and upper middle income relative to the rest of the US. This equates to an annual income of $148,496 for a family of four. However, St. Marys contains both very wealthy and poor people as well.

The people who call St. Marys home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of St. Marys residents report their race to be White, followed by Native American. Important ancestries of people in St. Marys include Irish, German, English, French, and Italian.

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