Demographics in St. John, IN
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is St. John?
Loading map…
Population
Source: U.S. Census Bureau ACS (2023)Total Population
21,639
Male
11,130
51.4%
Female
10,509
48.6%
Median Age
41.4
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White84.4%
Black2.8%
Hispanic10.6%
Asian2.4%
Two or More5.6%
Other4.7%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
28.7%
High School or Higher
43.8%
Foreign Born
5.7%
Veterans
3.7%
Married
52.3%
Avg Household Size
2.9
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)St. John, IN has a population of 21,639 with a median age of 41.4. The racial makeup is 84.4% White, 10.6% Hispanic, 2.8% Black, 2.4% Asian. About 28.7% of residents hold a bachelor's degree or higher. The foreign-born population is 5.7%.