Omaha Flag

Omaha

County:
Gallatin County
County Seat:
No
Area (mi²):
18.603
State:
Illinois

Omaha is located in Gallatin County, Illinois. Omaha has a 2025 population of 395 . Omaha is currently declining at a rate of -0.5% annually and its population has decreased by -5.73% since the most recent census, which recorded a population of 419 in 2020.

The median age in Omaha is 29.5 years: 27.2 years for males, and 33 years for females. For every 100 females there are 121.9 males.

395
Total Population
21
Density (mi²)
-2 -0.5%
Growth

Omaha Population

Omaha Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Omaha includes 85.77% White, and smaller percentages for and multiracial populations.

Population by Race

White (85.77%)

Two or more races (14.23%)

Race
Population
Percentage (of total)
White43485.77%
Two or more races7214.23%

Omaha Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

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)