Altamont Flag

Altamont

County Seat:
No
Area (mi²):
1.537
State:
Illinois

Altamont is a city located in Effingham County, Illinois. Altamont has a 2026 population of 2,200. Altamont is currently growing at a rate of 0.23% annually but its population has decreased by -0.86% since the most recent census, which recorded a population of 2,219 in 2020.

2.2K
Total Population
1,432
Density (mi²)
5 0.23%
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)