St. Johns Flag

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.

156
Total Population
215
Density (mi²)
-1 -0.64%
Growth

St. Johns Population

St. Johns Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Johns includes 91.04% White, and smaller percentages for Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Other race

Race
Population
Percentage (of total)
White12291.04%
Two or more races75.22%
Asian42.99%
Native American10.75%
Black or African American00%
Native Hawaiian or Pacific Islander00%
Other race00%

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

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)