Harmon Flag

Harmon

County:
Lee County
County Seat:
No
Area (mi²):
35.864
State:
Illinois

Harmon is located in Lee County, Illinois. Harmon has a 2025 population of 342 . Harmon is currently declining at a rate of -0.29% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 348 in 2020.

The median age in Harmon is 39.9 years: 34.1 years for males, and 48.4 years for females. For every 100 females there are 144.9 males.

342
Total Population
10
Density (mi²)
-1 -0.29%
Growth

Harmon Population

Harmon Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Harmon includes 85.81% White, 8.3% other race, and smaller percentages for Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White (85.81%)

Other race (8.3%)

Two or more races (3.81%)

Native Hawaiian or Pacific Islander (2.08%)

Race
Population
Percentage (of total)
White24885.81%
Other race248.3%
Two or more races113.81%
Native Hawaiian or Pacific Islander62.08%

Harmon 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)