Colchester township Flag

Colchester township

County Seat:
No
Area (mi²):
18.057
State:
Illinois

Colchester township is located in McDonough County, Illinois. Colchester township has a 2026 population of 1,528. Colchester township is currently declining at a rate of -1.23% annually and its population has decreased by -2.05% since the most recent census, which recorded a population of 1,560 in 2020.

The median household income in Colchester township is $62,482 with a poverty rate of 11.86%. The median age in Colchester township is 40.9 years: 39.4 years for males, and 45.3 years for females. For every 100 females there are 109.5 males.

1.5K
Total Population
85
Density (mi²)
-19 -1.23%
Growth

Colchester township Population

Colchester township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Colchester township includes 98.12% White, and smaller percentages for Two or more races, other race and multiracial populations.

Population by Race

White (98.12%)

Two or more races (1.75%)

Other race (0.12%)

Race
Population
Percentage (of total)
White1,62298.12%
Two or more races291.75%
Other race20.12%

Colchester township Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Colchester township's average per capita income is $40,060. Household income levels show a median of $62,482. The poverty rate stands at 11.86%.

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$69,020$77,738
Married Families$68,986-
Households$62,482$70,306
Non Families$22,378$45,133

$40,060

Average Income

$62,482

Median Household Income

11.86%

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)