Marietta village, Illinois Demographics & Population 2026

Population Overview

Marietta village is a small community located in Illinois. The total population is 110. It ranks as the 1327th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Marietta village is 39.5 years. This is 2% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Marietta village is $57,188. This is 30% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 27% lower. The poverty rate stands at 13.6%. This is 16% higher than the state poverty rate of 11.7%. The unemployment rate is 5.5%. This is 6% lower than the state rate of 5.8%. The median home value is $81,700. Housing costs are 67% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.4x, Marietta village is one of the most affordable housing markets in the area. 97.9% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 66.8%.

Race & Ethnicity

Marietta village has a predominantly White (non-Hispanic) population, comprising 100.0% of all residents. The White (non-Hispanic) population is significantly higher than the state average (100.0% vs 58.8%).

Education

20.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 45% lower than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.9%.

Data Sources & Methodology

All demographic data for Marietta village, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. For official data, visit data.census.gov.