Dorchester Flag

Dorchester

County:
Macoupin County
County Seat:
No
Area (mi²):
0.722
State:
Illinois

Dorchester is a village located in Macoupin County, Illinois. Dorchester has a 2026 population of 125. Dorchester is currently declining at a rate of 0% annually and its population has decreased by -3.1% since the most recent census, which recorded a population of 129 in 2020.

125
Total Population
173
Density (mi²)

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)