St. John

County:: Lake County
County Seat:: No
Area (mi²):: 12.739
State:: Indiana

St. John is a town located in Lake County, Indiana. St. John has a 2025 population of 25,729. St. John is currently growing at a rate of 4.23% annually and its population has increased by 25.41% since the most recent census, which recorded a population of 20,516 in 2020.

The average household income in St. John is $154,088 with a poverty rate of 2.29%.The median age in St. John is 41.4 years: 39.9 years for males, and 43.1 years for females.

Demographics

The racial composition of St. John includes 84.42% White, 4.7% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	18,267	84.42%
Two or more races	1,212	5.6%
Other race	1,018	4.7%
Black or African American	598	2.76%
Asian	525	2.43%
Native American	19	0.09%

St. John Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. John's average per capita income is $81,233. Household income levels show a median of $127,449. The poverty rate stands at 2.29%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$154,705	-
Families	$150,068	$168,062
Households	$127,449	$154,088
Non Families	$52,250	$79,730

$81,233

Average Income

$127,449

Median Household Income

2.29%

Poverty Rate