Sefton Flag

Sefton

County:
Fayette County
County Seat:
No
Area (mi²):
49.88
State:
Illinois

Sefton is located in Fayette County, Illinois. Sefton has a 2025 population of 556. Sefton is currently declining at a rate of -0.54% annually and its population has decreased by -1.94% since the most recent census, which recorded a population of 567 in 2020.

The average household income in Sefton is $92,254 with a poverty rate of 1.41%.The median age in Sefton is 46.5 years: 47.8 years for males, and 41.4 years for females.

556
Total Population
11
Density (mi²)
-3 -0.54%
Growth

Sefton Population

Sefton Population

Data after 2023 is projected based on recent change

5405505605705805906002010201220142016201820202022202420262028YearPopulation

Demographics

The racial composition of Sefton includes 98.36% White, and smaller percentages for Native American, Two or more races and multiracial populations.

Population by Race

98.36%

White (98.4%)

Native American (1.2%)

Two or more races (0.5%)

Race
Population
Percentage (of total)
White42098.36%
Native American51.17%
Two or more races20.47%

Sefton Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sefton's average per capita income is $48,893. Household income levels show a median of $66,750. The poverty rate stands at 1.41%.

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$105,357-
Families$105,000$116,454
Households$66,750$92,254
Non Families$48,286$41,352

$48,893

Average Income

$66,750

Median Household Income

1.41%

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)