Coldbrook township Flag

Coldbrook township

County:
Warren County
County Seat:
No
Area (mi²):
35.573
State:
Illinois

Coldbrook township is located in Warren County, Illinois. Coldbrook township has a 2026 population of 420. Coldbrook township is currently declining at a rate of -0.47% annually and its population has decreased by -3.89% since the most recent census, which recorded a population of 437 in 2020.

The median household income in Coldbrook township is $67,656 with a poverty rate of 27.68%. The median age in Coldbrook township is 70.4 years: 71.1 years for males, and 70.3 years for females. For every 100 females there are 111.7 males.

420
Total Population
12
Density (mi²)
-2 -0.47%
Growth

Coldbrook township Population

Coldbrook township Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White271100%

Coldbrook township Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Coldbrook township's average per capita income is $75,300. Household income levels show a median of $67,656. The poverty rate stands at 27.68%.

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$68,594$94,547
Married Families$68,594-
Households$67,656$69,441
Non Families-$42,639

$75,300

Average Income

$67,656

Median Household Income

27.68%

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)