Macomb Flag

Macomb

County Seat:
Yes
Area (mi²):
10.839
State:
Illinois

Macomb is a city located in McDonough County, Illinois. Macomb has a 2026 population of 14,765. It is also the county seat of McDonough County. Macomb is currently declining at a rate of -1.01% annually and its population has decreased by -1.57% since the most recent census, which recorded a population of 15,000 in 2020.

14.8K
Total Population
1,362
Density (mi²)
-150 -1.01%
Growth

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)