DahlgrenIL
A town of 495, settled in 1871.
Is Dahlgren a good place to live?
40% of residents are under 18 in Dahlgren, where Illinois’ towns sit at 22% and U.S. towns at 22%. No town among the 769 in Illinois we compare has a lower share of adults with a bachelor’s degree than Dahlgren. Dahlgren has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
495 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to Dahlgren: who provides what
Who provides power, water and the rest in Dahlgren, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
The data
Ordered by what stands out in Dahlgren.
Dahlgren has 0.5 jobs for every working resident, so most commute out
Most working residents leave Dahlgren for work: only 4% work in town. The top destinations are Mount Vernon (22%), McLeansboro (15%) and Dahlgren Township (4%). Half commute less than 16 miles.
| Dahlgren | Illinois towns | U.S. towns | |
|---|---|---|---|
| Working residents who work in town | 3.9% | 8.3% | 8% |
| Average trip to work | 26 minutes | 26 minutes | 25 minutes |
Where working residents work
Census LEHD 2023 · ACS
Dahlgren has four seasons and pleasant summers
Dahlgren has chilly winters and warm summers. Dahlgren’s July high is 87°F, above both Illinois’ towns (84°F) and U.S. towns (85°F).
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
Dahlgren faces a high natural-hazard risk, led by earthquakes
Expected storm and flood damage is higher than in 65% of U.S. communities.
FEMA National Risk Index · OpenFEMA
How healthy Dahlgren is
Dahlgren beats the Illinois average on 3 of 32 CDC measures and trails it on 8. 16% of Dahlgren adults smoke cigarettes.
| Dahlgren | Illinois towns | U.S. towns | |
|---|---|---|---|
| Smoke cigarettes (CDC PLACES) | 16% | 13% | 14% |
| Frequent physical distress (CDC PLACES) | 15% | 13% | 14% |
| Obesity (CDC PLACES) | 39% | 37% | 35% |
| Frequent mental distress (CDC PLACES) | 18% | 17% | 17% |
| What stands out | Dahlgren | IL |
|---|---|---|
| Fewer uninsured adults | 7.4% | 9.9% |
| Fewer adults facing housing insecurity | 10.8% | 13.2% |
| More adults with COPD | 9.1% | 6.3% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Everything we know about Dahlgren
Colleges nearby
1 within 15 miles of the center of Dahlgren
About 2 of every 100 Dahlgren residents are enrolled in college, against 6 across Illinois.
96% of working residents leave Dahlgren for work
Where Dahlgren’s working residents go each day. Line width shows the share.
Census LEHD 2023
About Dahlgren
Village in Illinois, United States
Dahlgren is a village in Hamilton County, Illinois, United States. The population was 504 at the 2020 census. It is part of the Mount Vernon Micropolitan Statistical Area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Established
- 1872
- Area
- 1.0 sq mi
- Elevation
- 512 ft
- ZIP code
- 62828
- Area code
- 618
Questions about Dahlgren
Short answers, built from the data on this page.
Is Dahlgren, IL a good place to live?
Dahlgren has fewer than 1,000 residents, too few for fair grades; the figures below are still real.