Troy Flag

Troy

County:
Madison County
County Seat:
No
Area (mi²):
6.239
State:
Illinois

Troy is a city located in Madison County, Illinois. Troy has a 2026 population of 11,810. Troy is currently growing at a rate of 0.76% annually and its population has increased by 3.11% since the most recent census, which recorded a population of 11,454 in 2020.

11.8K
Total Population
1,893
Density (mi²)
89 0.76%
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)