Dupo Illinois Map
Explore Dupo, 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.
Interactive Map of Dupo, Illinois
How to Use This Dupo, Illinois Map
This interactive map shows the street layout and satellite imagery for Dupo, 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 Dupo.
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 | Dupo |
| State | Illinois (IL) |
| County | St. Clair County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.516163 |
| Longitude | -90.21039 |
| Population | 3,996 |
| Density | 241.9 /km² |
| Incorporated | Yes |
| ZIP Codes | 62239, 62240 |
| Area Code | 217 |
| County Seat | Belleville |
| School District | Dupo Community Unit School District 196 |
About Dupo, Illinois
Dupo is a locality in St. Clair County, Illinois, United States. It has a population of approximately 3,996. The population density is 241.9 people per km². Dupo is located at 38.5162°N, 90.2104°W. It observes the Central Time (America/Chicago) timezone. Dupo is an incorporated locality. ZIP codes: 62239, 62240.Dupo stretches across a low-lying expanse of the American Bottom, where the horizon is dominated by the quiet, industrial rhythm of the Midwestern plains. It lies 3.9 miles south-southwest of Cahokia Heights, IL (from Cahokia Heights, IL: bearing 196°T), and is situated 7.7 miles south of St. Louis. The landscape is defined by the subtle rise of Oklahoma Hill to the west and the shadowed depressions of Cement Hollow, creating a topography that feels both ancient and utilitarian. At the center of daily life, Dupo Park offers a patch of maintained green space that anchors the local geography, providing a respite from the sprawling, flat agricultural fields that define the surrounding horizon. Only a mile away, the dark, slow-moving waters of Old Prairie duPont Creek trace a path through the silt, a reminder of the quiet, persistent hydrology that has shaped this inland soil for generations.
Dupo bears the mark of a history deeply connected to the movement of goods and the development of the regional rail network, a legacy that continues to influence the local economy today. The character of the place is forged in the steady labor of those who manage the heavy industry and logistics hubs that occupy the outskirts, where the air often carries the faint, metallic scent of transit and iron. While Porter Lake sits six miles distant, the life of the locality remains tethered to the land-locked plains rather than the water, maintaining a pace that is deliberate and unpretentious. Here, the golden light of late afternoon catches the dust rising from the sidings and the quiet residential streets, illuminating a community that finds its identity in the intersection of long-standing rail traditions and the enduring, flat expanse of the Illinois interior.
Nearby Outdoor Places
- Dupo Park (Local Park) — 0.3 mi, 083° E
- Dupo Prairie (Conservation Area) — 0.8 mi, 105° E
- Dupo Quarterback Club Ball Fields (Local Recreation) — 0.9 mi, 182° S
- Falling Spring (Conservation Area) — 0.9 mi, 093° E
- Columbia Golf Club (Park) — 2.4 mi, 182° S
- St. Clair County Trust (Local Recreation) — 3.1 mi, 344° N
- Jefferson Barracks County Park (Local Park) — 3.2 mi, 272° W
- Old Guard Monument (Monument) — 3.3 mi, 270° W
- WWII in the Pacific (Monument) — 3.3 mi, 271° W
- Becoming One With Nature (Public Artwork) — 3.4 mi, 316° NW
- Donald L. Fanetti (Monument) — 3.6 mi, 310° NW
- Stemler Cave Woods State Natural Area (State Conservation Area) — 4.1 mi, 146° SE
- Wildfruit Gallery (Gallery) — 4.2 mi, 335° NW
- Janes and Pang Atelier (Arts Centre) — 4.9 mi, 349° N
- Salon and Gallery (Gallery) — 5.4 mi, 352° N
- Flood Plain (Gallery) — 5.6 mi, 345° N
- Anheuser-Busch Brewery Tours (Attraction) — 5.7 mi, 358° N
- Tweed Prairie (Nature Reserve) — 5.9 mi, 226° SW
- Music Pavilion (Historic Ruins) — 6.9 mi, 357° N
- Village Theatre (Theatre) — 6.9 mi, 057° NE
- HMS Actaeon Guns (Attraction) — 6.9 mi, 357° N
- Gateway Arch National Park (National Park) — 7.2 mi, 010° N · 85 acres
- St. Louis Cardinals Hall of Fame and Museum (Museum) — 7.5 mi, 008° N
- Gateway Arch Riverboats (Attraction) — 7.5 mi, 011° N
- Mississippi River Overlook (Viewpoint) — 7.6 mi, 014° N
- Museum at the Gateway Arch (Museum) — 7.6 mi, 010° N
- The St. Louis Wheel (Attraction) — 7.7 mi, 000° N
- Frank Holten State Park (State Park) — 7.8 mi, 044° NE
- Cahokia Mounds State Historical Site (State Park) — 11.2 mi, 039° NE
- Middle Mississippi River National Wildlife Refuge (National Wildlife Refuge) — 17.2 mi, 206° SW · 16k acres
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About This Dupo Map Page
This page provides an embedded street and satellite map of Dupo, Illinois. Coordinates: 38.516163, -90.21039. 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 Dupo includes the ZIP code (62239, 62240), telephone area code (217), county seat of St. Clair County (Belleville), and school district assignment (Dupo Community Unit School District 196).
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. |
