St. Elmo Flag

St. Elmo

County:
Fayette County
County Seat:
No
Area (mi²):
1.483
State:
Illinois

St. Elmo is a city located in Fayette County, Illinois. St. Elmo has a 2025 population of 1,237 . St. Elmo is currently declining at a rate of -0.48% annually and its population has decreased by -2.37% since the most recent census, which recorded a population of 1,267 in 2020.

The average household income in St. Elmo is $60,154 with a poverty rate of 23.73%. The median age in St. Elmo is 37.6 years: 35.7 years for males, and 43.2 years for females. For every 100 females there are 93.5 males.

1.2K
Total Population
834
Density (mi²)
-6 -0.48%
Growth

St. Elmo Population

St. Elmo Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Elmo includes 96.93% White, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

White (96.93%)

Two or more races (2.43%)

Black or African American (0.64%)

Race
Population
Percentage (of total)
White1,35896.93%
Two or more races342.43%
Black or African American90.64%

St. Elmo Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Elmo's average per capita income is $36,083. Household income levels show a median of $47,115. The poverty rate stands at 23.73%.

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$70,250-
Families$61,250$69,863
Households$47,115$60,154
Non Families$30,625$46,521

$36,083

Average Income

$47,115

Median Household Income

23.73%

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)