Dahlgren Flag

Dahlgren

County:
Hamilton County
County Seat:
No
Area (mi²):
54.295
State:
Illinois

Dahlgren is located in Hamilton County, Illinois. Dahlgren has a 2025 population of 1,106 . Dahlgren is currently declining at a rate of -1.07% annually and its population has decreased by -3.57% since the most recent census, which recorded a population of 1,147 in 2020.

The average household income in Dahlgren is $69,019 with a poverty rate of 9.3%. The median age in Dahlgren is 39.1 years: 45.1 years for males, and 37.7 years for females. For every 100 females there are 91.2 males.

1.1K
Total Population
20
Density (mi²)
-12 -1.07%
Growth

Dahlgren Population

Dahlgren Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Dahlgren includes 99.11% White, and smaller percentages for Asian and multiracial populations.

Population by Race

White (99.11%)

Asian (0.89%)

Race
Population
Percentage (of total)
White1,33299.11%
Asian120.89%

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 $45,238. Household income levels show a median of $63,295. The poverty rate stands at 9.3%.

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$65,625-
Households$63,295$69,019
Families$62,595$72,874
Non Families$29,125$38,111

$45,238

Average Income

$63,295

Median Household Income

9.3%

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)