Dahlgren, Illinois — interactive Google street map, satellite and terrain views, Street View, live National Weather Service conditions and 7-day forecasts, real-time local and world news, and an editorial description of Dahlgren, Hamilton County.
| City | Dahlgren |
| State | Illinois (IL) |
| County | Hamilton |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.198104 |
| Longitude | -88.684502 |
| Population | 595 |
| Density | 239.5 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62828 |
| Area Code | 618 |
| County Seat | McLeansboro |
| School District | Hamilton County Community Unit School District 10 |
Dahlgren is a locality in Hamilton County, Illinois, United States. It is a small community with a population of 595. The population density is 239.5 people per km². Dahlgren is located at 38.1981°N, 88.6845°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62828.
Dahlgren rests in the gently rolling landscape of Hamilton County, a place where the sky feels vast and the earth holds a quiet resilience. It lies 45.1 miles west-north-west of Posey, IN (from Posey, IN: bearing 288°T), and is situated 14.4 miles south-east of Mount Vernon. The fields, a mosaic of corn and soybeans that turn a rich gold in the late summer sun, stretch towards horizons softened by the hazy, humid air characteristic of this part of southern Illinois. Scattered farmsteads, their white silos like sentinels against the deepening blue of twilight, punctuate the verdant expanse. The occasional stand of mature oak and hickory trees, their leaves rustling with a sound like hushed conversations, breaks the uniformity of the agricultural tapestry, offering pockets of cool shade and a sense of enduring natural presence. The story of Dahlgren is one woven from the rich soil and the industrious spirit of its people. Its economy has long been tied to the bounty of the land, with agriculture forming the bedrock of its sustenance and livelihood. Generations have worked these same fields, their lives marked by the changing seasons and the dependable rhythm of planting and harvest. While no grand monuments define its skyline, the simple, sturdy architecture of its homes and businesses speaks of a practical, community-minded character, a place where neighborly concern is as much a part of the landscape as the fertile ground itself. The quiet hum of daily life in Dahlgren is a testament to its enduring ability to thrive, a steady presence in the heart of its county.
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This page provides an interactive Google map of Dahlgren, Illinois with street, satellite and terrain views and integrated Street View imagery. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Dahlgren and Hamilton County.
Detailed location data for Dahlgren includes the ZIP code (62828), telephone area code (618), county seat of Hamilton County (McLeansboro), and school district assignment (Hamilton County Community Unit School District 10). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Dahlgren is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |