Decatur township Flag

Decatur township

County:
Macon County
County Seat:
No
Area (mi²):
29.065
State:
Illinois

Decatur township is located in Macon County, Illinois. Decatur township has a 2026 population of 45,897. Decatur township is currently declining at a rate of -0.11% annually and its population has decreased by -3.41% since the most recent census, which recorded a population of 47,517 in 2020.

The median household income in Decatur township is $48,870 with a poverty rate of 24.15%. The median age in Decatur township is 37.1 years: 35 years for males, and 38.7 years for females. For every 100 females there are 90.7 males.

45.9K
Total Population
1,579
Density (mi²)
-51 -0.11%
Growth

Decatur township Population

Decatur township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202645,897-51-0.11%
202545,948-51-0.11%
202445,999-51-0.11%
202346,050-307-0.66%
202246,357-592-1.26%
202146,949-568-1.2%
202047,517-121-0.25%
201949,100-294-0.6%
201849,394-484-0.97%
201749,878-487-0.97%
201650,365-586-1.15%
201550,951-635-1.23%
201451,586-543-1.04%
201352,129-340-0.65%
201252,469-320-0.61%
201152,789-126-0.24%
201052,902-23-0.04%

Median Age

Overall: 37.1 years
Female: 38.7 years
Male: 35 years

Decatur township Adults

There are 36,011 adults, (8,537 of whom are seniors) in Decatur township.

Sex Ratio

Female: 24,428 (52.4%)
Male: 22,158 (47.6%)

Demographics

The racial composition of Decatur township includes 61.51% White, 26.92% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White28,65661.51%
Black or African American12,54226.92%
Two or more races4,1969.01%
Other race6201.33%
Asian4600.99%
Native American690.15%
Native Hawaiian or Pacific Islander430.09%
Race
Population ↓
Percentage (of total)
Two or more races7531.62%
White6771.45%
Other race2570.55%
Native American290.06%
Black or African American180.04%
Race
Population ↓
Percentage (of total)
White27,97960.06%
Black or African American12,52426.88%
Two or more races3,4437.39%
Asian4600.99%
Other race3630.78%
Native Hawaiian or Pacific Islander430.09%
Native American400.09%

Decatur township Marital Status

Economics and Income Statistics

Decatur township 's average per capita income is $42,553. Household income levels show a median of $48,870. The poverty rate stands at 24.15%.

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$83,169-
Families$63,689$83,164
Households$48,870$66,045
Non Families$39,218$45,713

$42,553

Average Income

$48,870

Median Household Income

24.15%

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)