Dahlgren Flag

Dahlgren

County:
Hamilton County
County Seat:
No
Area (mi²):
1.017
State:
Illinois

Dahlgren is a village located in Hamilton County, Illinois. Dahlgren has a 2025 population of 490 . Dahlgren is currently declining at a rate of -0.61% annually and its population has decreased by -2.58% since the most recent census, which recorded a population of 503 in 2020.

The average household income in Dahlgren is $50,686 with a poverty rate of 19.81%. The median age in Dahlgren is 37.3 years: 36.9 years for males, and 37.7 years for females. For every 100 females there are 99.7 males.

490
Total Population
482
Density (mi²)
-3 -0.61%
Growth

Dahlgren Population

Dahlgren Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Dahlgren includes 98.1% White, and smaller percentages for Asian and multiracial populations.

Population by Race

White (98.1%)

Asian (1.9%)

Race
Population
Percentage (of total)
White61998.1%
Asian121.9%

Dahlgren Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Dahlgren's average per capita income is $38,125. Household income levels show a median of $47,500. The poverty rate stands at 19.81%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$58,594-
Families$53,125$56,246
Households$47,500$50,686
Non Families$33,750$38,832

$38,125

Average Income

$47,500

Median Household Income

19.81%

Poverty Rate

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)