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Decatur Illinois Map

Explore Decatur, 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 Decatur, Illinois

How to Use This Decatur, Illinois Map

This interactive map shows the street layout and satellite imagery for Decatur, 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 Decatur.

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	Decatur
State	Illinois (IL)
County	Macon County
Country	United States of America
Timezone	Central Time (America/Chicago)

Latitude	39.855983
Longitude	-88.933746
Population	70,522
Density	634.8 /km²
Incorporated	Yes
ZIP Codes	62523, 62522, 62521, 62524, 62525
Area Code	217
County Seat	Decatur
School District	Decatur School District 61

🌦 Goto Decatur Weather Page: Decatur, Illinois — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Decatur, Illinois

Decatur is a locality in Macon County, Illinois, United States. It has a population of 70,522. The population density is 634.8 people per km². Decatur is located at 39.8560°N, 88.9337°W. It observes the Central Time (America/Chicago) timezone. Decatur is an incorporated locality. ZIP codes: 62523, 62522, 62521.

Decatur emerges from the expansive horizon of the Illinois prairie as a place defined by the quiet strength of the interior landscape. It lies 25.2 miles south-southwest of DeWitt, IL (from DeWitt, IL: bearing 201°T), and is situated 6.4 miles northwest of Mount Zion. The terrain surrounding Decatur is characterized by vast, fertile plains that stretch toward the sky, broken only by the rhythmic geometry of agricultural fields and the subtle, steady movement of the Sangamon River. The air here holds a particular clarity, especially when the sun dips low, casting long, golden shadows across the flat earth. While the distant elevation of Blind Horse Ridge offers a faint, weathered silhouette against the horizon, the immediate environment is defined by the gentle, man-made expanse of Lake Decatur, which anchors the local topography and provides a cooling presence amidst the summer heat.

Decatur traces its origins to the early nineteenth century, when pioneers recognized the potential of the rich soil and the utility of the nearby waterways for establishing a permanent settlement. The early growth of Decatur was deeply intertwined with the labor of those who cleared the timber and broke the prairie sod, turning a frontier outpost into a vital hub of the region. A defining chapter in the narrative of Decatur involves its association with Abraham Lincoln, who began his political life here, finding in the local people a reflection of his own modest and pragmatic values. This historical foundation remains visible in the enduring architecture of the older districts, where solid brick structures stand as remnants of a time when the town first started to command the attention of the growing state.

Decatur serves as a primary engine of regional productivity, with an economy traditionally anchored by heavy manufacturing and the processing of agricultural commodities. The skyline of Decatur is often punctuated by the vertical silhouettes of grain elevators and industrial facilities that process the bounty of the surrounding farms, creating a steady, industrious pulse that defines the workday. Educational opportunities are provided by Millikin University, an institution that integrates itself into the professional and social life of the area, fostering a culture of learning and civic engagement. Infrastructure in Decatur reflects this reliance on connectivity, with rail lines and highways cutting through the landscape to transport goods and people across the vast, inland plains.

Culture in Decatur manifests through a shared appreciation for local traditions, high school athletics, and the collective celebration of seasonal festivals that bring the population together. During the warmer months, residents gravitate toward Coates Park, a local space that offers a quiet reprieve under the canopy of mature trees, serving as a backdrop for both solitary reflection and community gatherings. The spirit of Decatur is also found in the legacy of notable figures like the jazz musician Sun Ra, whose influence echoes the unconventional, creative energy that occasionally blooms in the heart of the Midwest. Life here maintains a deliberate, grounded pace, where the changing colors of the corn and soybean fields serve as a natural calendar, marking the passage of time with the predictable, beautiful cycle of the seasons.

Nearby Outdoor Places

Hess Park (Local Park) — 0.9 mi, 305° NW
Wabash Station (Attraction) — 0.9 mi, 229° SW
Nelson Park And Golf Course (Local Park) — 1.3 mi, 149° SE
Hieronymus Mueller Museum (Museum) — 1.6 mi, 245° SW
Staley Museum (Museum) — 1.7 mi, 242° SW
Amphitheater (Theatre) — 1.8 mi, 157° SE
Decatur 9/11 Memorial (Monument) — 1.8 mi, 160° S
Unknown Soldier Monument (Monument) — 2.2 mi, 220° SW
G.A.R. Memorial (Monument) — 2.2 mi, 220° SW
Scoville Gardens and Zoo (Local Recreation) — 2.2 mi, 152° SE
Bald Eagle (Viewpoint) — 2.3 mi, 155° SE
Rock Springs Conservation Area (Local Conservation Area) — 3.6 mi, 238° SW
Sand Creek Open Space Reservation (Local Recreation) — 4.0 mi, 184° S
Spitler Woods (State Park) — 6.3 mi, 145° SE
Harristown Depot (Attraction) — 8.0 mi, 268° W
Death of the Last Centaur (Public Artwork) — 17.6 mi, 056° NE
Illinois Central Depot (Attraction) — 17.8 mi, 145° SE
Christian County Coal Mine Museum (Museum) — 28.6 mi, 222° SW
Taylorville Cinema (Cinema) — 28.6 mi, 222° SW
Edward R. Madigan State Park (State Park) — 29.1 mi, 306° NW
Taylorville Chautaugua Auditorium (Theatre) — 29.1 mi, 222° SW
VIP Lincoln Grand (Cinema) — 30.3 mi, 311° NW
Lincoln Heritage Museum (Museum) — 30.7 mi, 313° NW
Pig-Hip Restaurant Memorial (Attraction) — 30.7 mi, 299° NW
Route 66 Arcade Museum (Museum) — 32.1 mi, 331° NW
Chautauqua National Wildlife Refuge (National Wildlife Refuge) — 65.1 mi, 306° NW · 13k acres
Emiquon National Wildlife Refuge (National Wildlife Refuge) — 67.7 mi, 298° NW · 5,262 acres

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