In 2022, Marietta, IL had a population of 81 people with a median age of 39.8 and a median household income of $63,125. Between 2021 and 2022 the population of Marietta, IL declined from 82 to 81, a −1.22% decrease and its median household income grew from $45,000 to $63,125, a 40.3% increase.
The 5 largest ethnic groups in Marietta, IL are White (Non-Hispanic) (100%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), Black or African American (Hispanic) (0%), and American Indian & Alaska Native (Non-Hispanic) (0%).
None of the households in Marietta, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Marietta, IL are U.S. citizens.
In 2022, the median property value in Marietta, IL was $80,000, and the homeownership rate was 94.4%.
Most people in Marietta, IL drove alone to work, and the average commute time was 25 minutes. The average car ownership in Marietta, IL was 3 cars per household.