In 2021, Dahlgren, IL had a population of 684 people with a median age of 37.2 and a median household income of $41,731. Between 2020 and 2021 the population of Dahlgren, IL declined from 699 to 684, a −2.15% decrease and its median household income declined from $50,038 to $41,731, a −16.6% decrease.
The 5 largest ethnic groups in Dahlgren, IL are White (Non-Hispanic) (100%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), Black or African American (Hispanic) (0%), and American Indian & Alaska Native (Non-Hispanic) (0%).
None of the households in Dahlgren, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Dahlgren, IL are U.S. citizens.
In 2021, the median property value in Dahlgren, IL was $47,900, and the homeownership rate was 81%.
Most people in Dahlgren, IL drove alone to work, and the average commute time was 25.1 minutes. The average car ownership in Dahlgren, IL was 3 cars per household.