Marietta is a medium-sized city located in the state of Ohio. With a population of 13,039 people and ten associated neighborhoods, Marietta is the 139th largest community in Ohio. Marietta has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

Telecommuters are a relatively large percentage of the workforce: 8.64% 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.

Compared to the rest of the country, citizens of Marietta spend much less time in their cars: on average, their commute to work is only 16.39 minutes. This also means that noise and pollution levels in the city are less than they would otherwise be.

The percentage of people in Marietta who are college-educated is somewhat higher than the average US community of 21.84%: 28.64% of adults in Marietta have at least a bachelor's degree.

The per capita income in Marietta in 2022 was $32,127, which is middle income relative to Ohio, and lower middle income relative to the rest of the US. This equates to an annual income of $128,508 for a family of four. However, Marietta contains both very wealthy and poor people as well.

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

The most common language spoken in Marietta is English. Other important languages spoken here include Italian and Greek.