Smithton township Flag

Smithton township

County Seat:
No
Area (mi²):
32.29
State:
Illinois

Smithton township is located in St. Clair County, Illinois. Smithton township has a 2026 population of 3,999. Smithton township is currently declining at a rate of -0.5% annually and its population has decreased by -3.85% since the most recent census, which recorded a population of 4,159 in 2020.

The median household income in Smithton township is $122,778 with a poverty rate of 3.6%. The median age in Smithton township is 41.6 years: 42.2 years for males, and 41.1 years for females. For every 100 females there are 109.2 males.

4K
Total Population
124
Density (mi²)
-20 -0.5%
Growth

Smithton township Population

Smithton township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,999-20-0.5%
20254,019-20-0.5%
20244,039-20-0.49%
20234,059-33-0.81%
20224,092-42-1.02%
20214,134-25-0.6%
20204,159-7-0.17%
20194,284-30-0.7%
20184,31450.12%
20174,309230.54%
20164,286-6-0.14%
20154,292-17-0.39%
20144,309-3-0.07%
20134,312-20-0.46%
20124,332-7-0.16%
20114,339641.5%
20104,32050.12%

Median Age

Overall: 41.6 years
Female: 41.1 years
Male: 42.2 years

Smithton township Adults

There are 3,055 adults, (890 of whom are seniors) in Smithton township.

Sex Ratio

Female: 1,961 (47.8%)
Male: 2,141 (52.2%)

Demographics

The racial composition of Smithton township includes 89.88% White, and smaller percentages for Asian, other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3,68789.88%
Two or more races2977.24%
Asian862.1%
Other race240.59%
Black or African American80.2%
Race
Population ↓
Percentage (of total)
Two or more races461.12%
Other race240.59%
Race
Population ↓
Percentage (of total)
White3,68789.88%
Two or more races2516.12%
Asian862.1%
Black or African American80.2%

Smithton township Marital Status

Economics and Income Statistics

Smithton township 's average per capita income is $68,929. Household income levels show a median of $122,778. The poverty rate stands at 3.6%.

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$140,221-
Families$137,955$139,250
Households$122,778$126,008
Non Families$47,000$73,967

$68,929

Average Income

$122,778

Median Household Income

3.6%

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)