Explore Dahlgren, Illinois, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
This interactive map shows the street layout and satellite imagery for Dahlgren, Illinois. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Illinois or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Dahlgren.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | Dahlgren |
| State | Illinois (IL) |
| County | Hamilton County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.198104 |
| Longitude | -88.684502 |
| Population | 504 |
| Density | 191.3 /km² |
| Incorporated | Yes |
| ZIP Code | 62828 |
| Area Code | 618 |
| County Seat | McLeansboro |
| School District | Hamilton County Community Unit School District 10 |
Dahlgren emerges from the flat, fertile expanse of the Illinois prairie as a quiet intersection of agriculture and horizon. It lies 14.4 miles southeast of Mount Vernon, IL (from Mount Vernon, IL: bearing 125°T), and is situated 18.9 miles northeast of Benton. Big Creek carves a deliberate path through the landscape nearby, its waters mirroring the vast, unyielding sky that defines this inland geography. To the south, the Ten Mile Creek State Fish and Wildlife Area offers a sprawling sanctuary of managed woods and wetlands, while the distant, faint silhouette of Fleming Ridge hums against the western edge of the world. The air here carries the scent of turned earth and drying stalks, a heavy, honest fragrance that settles over the fields long after the sun has dipped below the corn-rowed perimeter. Only three miles away, Olan Bullock Lake provides a stillness to the terrain, its surface holding the gray light of dusk with a clarity that renders the surrounding timber into sharp, dark silhouettes.
Dahlgren persists as a node of industry rooted firmly in the soil, where the pulse of the local economy aligns with the seasonal cadence of harvest and planting. The iron rails that once dictated the movement of goods through this region remain a silent witness to a history built on the backs of those who transformed the tallgrass into organized, productive grids. Life in Dahlgren moves with the patient resolve of a pendulum, unbothered by the frantic acceleration of larger centers to the north. Grain silos stand as the primary architecture of the skyline, their metallic forms catching the morning glow and casting long, geometric shadows across the gravel roads. It is a place where the social fabric is reinforced by the endurance of generations who recognize the value of a steady hand and a quiet, deliberate way of being.
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This page provides an embedded street and satellite map of Dahlgren, Illinois. Coordinates: 38.198104, -88.684502. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
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).
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |