Sidney Flag

Sidney

County Seat:
No
Area (mi²):
36.315
State:
Illinois

Sidney is located in Champaign County, Illinois. Sidney has a 2025 population of 1,702 . Sidney is currently growing at a rate of 0.71% annually and its population has increased by 0.18% since the most recent census, which recorded a population of 1,699 in 2020.

The average household income in Sidney is $118,010 with a poverty rate of 4.88%. The median age in Sidney is 44.1 years: 40.4 years for males, and 45.2 years for females. For every 100 females there are 109.5 males.

1.7K
Total Population
47
Density (mi²)
12 0.71%
Growth

Sidney 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)