Marion County, IN — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
971,822
Male
470,733
48.4%
Female
501,089
51.6%
Median Age
34.3 yrs
Avg Household Size
2.4
Foreign Born
11.6%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher22.3%
High School or Higher40.0%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.2%
Disability
0.0%
Non-English Home
8.1%
Married
33.5%
Marion County, IN has a population of 971,822 according to 2023 Census Bureau estimates. The median age is 34.3 years. The largest racial or ethnic group is White at 54.2% of the population. 22.3% of residents hold a bachelor's degree or higher. 11.6% of residents are foreign-born.