St. Johns

County:: Jackson County
County Seat:: No
Area (mi²):: 0.725
State:: Illinois

St. Johns is a village located in Jackson County, Illinois. St. Johns has a 2025 population of 156. St. Johns is currently declining at a rate of -0.64% annually and its population has decreased by -2.5% since the most recent census, which recorded a population of 160 in 2020.

The average household income in St. Johns is $50,037 with a poverty rate of 11.19%.The median age in St. Johns is 53.6 years: 51.3 years for males, and 55.3 years for females.

Demographics

The racial composition of St. Johns includes 91.04% White, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	122	91.04%
Two or more races	7	5.22%
Asian	4	2.99%
Native American	1	0.75%

St. Johns Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Johns' average per capita income is $28,750. Household income levels show a median of $39,286. The poverty rate stands at 11.19%.

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	$68,750	-
Families	$56,250	$62,997
Households	$39,286	$50,037
Non Families	$30,625	$31,583

$28,750

Average Income

$39,286

Median Household Income

11.19%

Poverty Rate