Decker township Flag

Decker township

County:
Richland County
County Seat:
No
Area (mi²):
35.239
State:
Illinois

Decker township is located in Richland County, Illinois. Decker township has a 2026 population of 397. Decker township is currently declining at a rate of -1% annually and its population has decreased by -4.34% since the most recent census, which recorded a population of 415 in 2020.

The median household income in Decker township is $91,750 with a poverty rate of 0%. The median age in Decker township is 63.7 years: 66.5 years for males, and 63.3 years for females. For every 100 females there are 82.9 males.

397
Total Population
11
Density (mi²)
-4 -1%
Growth

Decker township Population

Decker township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026397-4-1%
2025401-4-0.99%
2024405-4-0.98%
202340920.49%
2022407-7-1.69%
2021414-1-0.24%
202041500%
2019388-4-1.02%
2018392-3-0.76%
201739500%
2016395-3-0.75%
2015398-2-0.5%
201440000%
2013400-3-0.74%
2012403-2-0.49%
2011405-1-0.25%
2010405-1-0.25%

Median Age

Overall: 63.7 years
Female: 63.3 years
Male: 66.5 years

Decker township Adults

There are 278 adults, (114 of whom are seniors) in Decker township.

Sex Ratio

Female: 152 (54.7%)
Male: 126 (45.3%)

Demographics

The racial composition of Decker township includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White278100%
Race
Population ↓
Percentage (of total)
White278100%

Decker township Marital Status

Economics and Income Statistics

Decker township 's average per capita income is $47,973. Household income levels show a median of $91,750. The poverty rate stands at 0%.

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$98,162$92,545
Married Families$98,162-
Households$91,750$88,242
Non Families--

$47,973

Average Income

$91,750

Median Household Income

0%

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)