South Flannigan Flag

South Flannigan

County:
Hamilton County
County Seat:
No
Area (mi²):
18.34
State:
Illinois

South Flannigan is located in Hamilton County, Illinois. South Flannigan has a 2025 population of 137 . South Flannigan is currently declining at a rate of -0.72% annually and its population has decreased by -2.84% since the most recent census, which recorded a population of 141 in 2020.

The average household income in South Flannigan is $104,887 with a poverty rate of 4.76%. The median age in South Flannigan is 33.3 years: 22.9 years for males, and 33.7 years for females. For every 100 females there are 121.1 males.

137
Total Population
7
Density (mi²)
-1 -0.72%
Growth

South Flannigan Population

South Flannigan Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of South Flannigan includes 70.24% White, and smaller percentages for and multiracial populations.

Population by Race

White (70.24%)

Two or more races (29.76%)

Race
Population
Percentage (of total)
White5970.24%
Two or more races2529.76%

South Flannigan Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Flannigan's average per capita income is $0. Household income levels show a median of $103,750. The poverty rate stands at 4.76%.

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
Families$126,250$142,565
Households$103,750$104,887
Married Families--
Non Families--

$0

Average Income

$103,750

Median Household Income

4.76%

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)