Adair Flag

Adair

County Seat:
No
Area (mi²):
0.43
State:
Illinois

Adair is a CDP located in McDonough County, Illinois. Adair has a 2026 population of 134. Adair is currently declining at a rate of -2.9% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Adair is 19.8 years: 36.7 years for males, and 19.7 years for females. For every 100 females there are 47.3 males.

134
Total Population
312
Density (mi²)
-4 -2.9%
Growth

Adair Population

Adair Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026134-4-2.9%
2025138-5-3.5%

Median Age

Overall: 19.8 years
Female: 19.7 years
Male: 36.7 years

Adair Adults

There are 157 adults, (21 of whom are seniors) in Adair.

Sex Ratio

Female: 146 (67.9%)
Male: 69 (32.1%)

Demographics

The racial composition of Adair includes 85.12% White, 7.91% Black or African American, 6.98% Asian, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White18385.12%
Black or African American177.91%
Asian156.98%
Race
Population ↓
Percentage (of total)
White18385.12%
Black or African American177.91%
Asian156.98%

Adair Marital Status

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)