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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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