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 425. Coldbrook township is currently growing at a rate of 0.47% annually but its population has decreased by -3.19% since the most recent census, which recorded a population of 439 in 2020.

The median age in Coldbrook township is 62.9 years: 63.6 years for males, and 62.8 years for females. For every 100 females there are 91.7 males.

425
Total Population
12
Density (mi²)
2 0.47%
Growth

Coldbrook township Population

Coldbrook township Population

Year ↓
Population
Growth
Annual Change
202642520.47%
202542320.48%
2024421-3-0.71%
2023424-3-0.7%
2022427-6-1.39%
2021433-6-1.37%
202043900%
2019453-7-1.52%
2018460-1-0.22%
2017461-4-0.86%
2016465-2-0.43%
2015467-8-1.68%
201447540.85%
2013471-1-0.21%
201247200%
201147251.07%
201046900%

Median Age

Overall: 62.9 years
Female: 62.8 years
Male: 63.6 years

Coldbrook township Adults

There are 272 adults, (127 of whom are seniors) in Coldbrook township.

Sex Ratio

Female: 156 (52.2%)
Male: 143 (47.8%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White299100%
Race
Population ↓
Percentage (of total)
White299100%

Coldbrook township Marital Status

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)