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 and multiracial populations.

Population by Race

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%

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