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 and multiracial populations.

Population by Race

White (91.0%)

Two or more races (5.2%)

Asian (3.0%)

Native American (0.8%)

Race
Population
Percentage (of total)
White12291.04%
Two or more races75.22%
Asian42.99%
Native American10.75%

St. Johns Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

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)