Dorchester township Flag

Dorchester township

County:
Macoupin County
County Seat:
No
Area (mi²):
35.979
State:
Illinois

Dorchester township is located in Macoupin County, Illinois. Dorchester township has a 2026 population of 1,447. Dorchester township is currently declining at a rate of -0.55% annually and its population has decreased by -3.47% since the most recent census, which recorded a population of 1,499 in 2020.

The median household income in Dorchester township is $68,690 with a poverty rate of 6.07%. The median age in Dorchester township is 37.4 years: 39.2 years for males, and 36.8 years for females. For every 100 females there are 104.3 males.

1.4K
Total Population
40
Density (mi²)
-8 -0.55%
Growth

Dorchester township Population

Dorchester township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,447-8-0.55%
20251,455-8-0.55%
20241,463-8-0.54%
20231,471-2-0.14%
20221,473-12-0.81%
20211,485-14-0.93%
20201,499-4-0.27%
20191,467-8-0.54%
20181,475-5-0.34%
20171,480-8-0.54%
20161,488-5-0.33%
20151,493-11-0.73%
20141,504-15-0.99%
20131,519-12-0.78%
20121,531-24-1.54%
20111,55550.32%
20101,55610.06%

Median Age

Overall: 37.4 years
Female: 36.8 years
Male: 39.2 years

Dorchester township Adults

There are 1,256 adults, (293 of whom are seniors) in Dorchester township.

Sex Ratio

Female: 816 (49%)
Male: 851 (51%)

Demographics

The racial composition of Dorchester township includes 96.4% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,60796.4%
Two or more races603.6%
Race
Population ↓
Percentage (of total)
Two or more races20.12%
Race
Population ↓
Percentage (of total)
White1,60796.4%
Two or more races583.48%

Dorchester township Marital Status

Economics and Income Statistics

Dorchester township 's average per capita income is $45,761. Household income levels show a median of $68,690. The poverty rate stands at 6.07%.

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$91,667-
Families$81,964$107,862
Households$68,690$91,809
Non Families-$44,088

$45,761

Average Income

$68,690

Median Household Income

6.07%

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)