St. John township

County:: Lake County
County Seat:: No
Area (mi²):: 39.252
State:: Indiana

St. John township is located in Lake County, Indiana. St. John township has a 2025 population of 72,014. St. John township is currently growing at a rate of 0.7% annually and its population has increased by 4.19% since the most recent census, which recorded a population of 69,119 in 2020.

The average household income in St. John township is $124,740 with a poverty rate of 6.02%. The median age in St. John township is 44 years: 42.6 years for males, and 45.5 years for females.

Demographics

The racial composition of St. John township includes 80.78% White, 5.2% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	56,376	80.78%
Two or more races	6,338	9.08%
Black or African American	3,628	5.2%
Asian	1,745	2.5%
Other race	1,573	2.25%
Native American	129	0.18%
Native Hawaiian or Pacific Islander	0	0%

St. John township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. John township's average per capita income is $61,203. Household income levels show a median of $98,967. The poverty rate stands at 6.02%.

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	$129,435	-
Families	$116,243	$141,961
Households	$98,967	$124,740
Non Families	$57,188	$71,759

$61,203

Average Income

$98,967

Median Household Income

6.02%

Poverty Rate