South Flannigan township Flag

South Flannigan township

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

South Flannigan township is located in Hamilton County, Illinois. South Flannigan township has a 2026 population of 139. South Flannigan township is currently declining at a rate of 0% annually and its population has decreased by -1.42% since the most recent census, which recorded a population of 141 in 2020.

The median household income in South Flannigan township is $73,333 with a poverty rate of 11.61%. The median age in South Flannigan township is 37.5 years: 37.5 years for males, and 36 years for females. For every 100 females there are 80.6 males.

139
Total Population
7.6
Density (mi²)

South Flannigan township Population

South Flannigan township Population

Year ↓
Population
Growth
Annual Change
202613900%
202513900%
202413900%
2023139-2-1.42%
202214110.71%
2021140-1-0.71%
202014100%
2019117-1-0.85%
201811800%
201711800%
2016118-1-0.84%
2015119-1-0.83%
201412010.84%
2013119-1-0.83%
201212000%
201112043.45%
201012100%

Median Age

Overall: 37.5 years
Female: 36 years
Male: 37.5 years

South Flannigan township Adults

There are 96 adults, (24 of whom are seniors) in South Flannigan township.

Sex Ratio

Female: 62 (55.4%)
Male: 50 (44.6%)

Demographics

The racial composition of South Flannigan township includes 75.89% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White8575.89%
Two or more races2724.11%
Race
Population ↓
Percentage (of total)
White8575.89%
Two or more races2724.11%

South Flannigan township Marital Status

Economics and Income Statistics

South Flannigan township's average per capita income is $0. Household income levels show a median of $73,333. The poverty rate stands at 11.61%.

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$153,250-
Families$106,786$152,436
Households$73,333$99,840
Non Families$41,071$35,556

$0

Average Income

$73,333

Median Household Income

11.61%

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)