Decker Flag

Decker

County:
Richland County
County Seat:
No
Area (mi²):
35.239
State:
Illinois

Decker is located in Richland County, Illinois. Decker has a 2025 population of 403. Decker is currently declining at a rate of -0.49% annually and its population has decreased by -2.66% since the most recent census, which recorded a population of 414 in 2020.

The average household income in Decker is $115,000 with a poverty rate of 0%.The median age in Decker is 54 years: 57 years for males, and 50.9 years for females.

403
Total Population
11
Density (mi²)
-2 -0.49%
Growth

Decker Population

Demographics

Economics and Income Statistics

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)