Marion is a medium-sized city located in the state of Iowa. With a population of 42,213 people and nine associated neighborhoods, Marion is the 13th largest community in Iowa. Much of the housing stock in Marion was built relatively recently. The construction of new real estate can often be taken as an indication that the local Marion economy is robust, and that jobs or other amenities are attracting an influx of new residents. This seems to be the case in Marion, where the median household income is $81,519.00.

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

Telecommuters are a relatively large percentage of the workforce: 13.82% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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 population of Marion is very well educated relative to most cities and towns in the nation, where the average community has 21.84% of its adult population holding a 4-year degree or higher: 37.57% of adults in Marion have a bachelor's degree or even advanced degree.

The per capita income in Marion in 2022 was $42,616, which is wealthy relative to Iowa, and upper middle income relative to the rest of the US. This equates to an annual income of $170,464 for a family of four. However, Marion contains both very wealthy and poor people as well.

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

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