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Union Illinois Map

Explore Union, 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 Union, Illinois

How to Use This Union, Illinois Map

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

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

Latitude	42.231567
Longitude	-88.54478
Population	551
Density	254.5 /km²
Incorporated	Yes
ZIP Codes	61532, 62635, 60433, 60180
Area Code	708, 312, 773
County Seat	Lincoln
School District	Marengo-Union Elementary Consolidated District 165

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

About Union, Illinois

Union is a locality in Logan County, Illinois, United States. It is a small community with a population of 551. The population density is 254.5 people per km². Union is located at 42.2316°N, 88.5448°W. It observes the Central Time (America/Chicago) timezone. Union is an incorporated locality. ZIP codes: 61532, 62635, 60433.

Union occupies a broad expanse of Midwestern terrain where the horizon stretches flat and wide, defined by the steady work of seasons upon the soil. It lies 9.6 miles north of Lincoln, IL (from Lincoln, IL: bearing 359°T), and is situated 17.8 miles south-southeast of Tremont. The land surrounding Union maintains a quiet consistency, characterized by expansive fields that transition into wooded pockets and the low, moisture-rich basins of the region. Two miles to the west, the waters of Middle Fork Sugar Creek carve a narrow, deliberate path through the earth, serving as a vital artery for the local flora and fauna. Beyond the immediate fields, the landscape remains largely untroubled by dramatic elevation, though the faint, blue-hued silhouette of Red Oak Ridge occasionally asserts itself against the sky twenty-two miles away. Within three miles, the stillness of Hickory Lake offers a reflective contrast to the bustling activity of the nearby Sugar Creek - West Fork, a protected space that preserves the wilder, uncultivated character of the prairie.

Agriculture remains the primary pulse of Union, grounding the rhythm of the day in the planting and harvest cycles that have long dictated the pace of life here. The infrastructure of the locality reflects a history tied to the expansion of rail and the necessity of moving goods across the interior, creating a legacy of industry that persists in the utilitarian structures that line its center. Local life is defined by a deep-seated pragmatism, where the quality of the light at dusk—turning the grain fields into a sea of muted amber—is often the only interruption to a day defined by labor. Visitors seeking a connection to the past find it in the preservation of vintage machinery and the architecture of the older streets, which speak to a time when Union served as a critical junction for the surrounding farms. The air here holds a particular crispness, especially as the wind moves across the plains, carrying the scent of damp earth and the quiet persistence of a place that values its own steady, unremarkable endurance.

Nearby Outdoor Places

McHenry County Historical Society and Museum (Museum) — 0.3 mi, 026° NE
HUM Railroad Prairie East (Conservation Area) — 0.8 mi, 097° E
Coral Woods 2 (Local Conservation Area) — 0.9 mi, 243° SW
Coral Woods 5 (Local Conservation Area) — 1.4 mi, 242° SW
Coral Woods (Conservation Area) — 1.7 mi, 271° W
Donley Auctions (Attraction) — 1.9 mi, 186° S
Pleasant Valley 13 (State Recreation Area) — 2.5 mi, 087° E
Pleasant Valley 11 (State Conservation Area) — 3.0 mi, 089° E
Cody's Farm and Orchard (Attraction) — 3.3 mi, 330° NW
All Seasons Apple Orchard (Attraction) — 3.7 mi, 063° NE
Pleasant Valley 10 (State Recreation Area) — 3.7 mi, 088° E
Inflatables (Attraction) — 3.7 mi, 063° NE
Huntley Veterans Memorial (Monument) — 7.5 mi, 125° SE
Woodstock Opera House (Theatre) — 7.6 mi, 041° NE
Bill Murray Stepped Here (Monument) — 7.6 mi, 041° NE
Planetarium Display (Public Artwork) — 9.3 mi, 077° E
Trails of Woods Creek Natural Area (Nature Reserve) — 10.2 mi, 115° SE
Parker Fen Nature Preserve (Nature Reserve) — 10.3 mi, 069° E
First School House Hooser's Grove 1845 (Monument) — 10.9 mi, 253° W
Ravenstone Castle (Historic Castle / Fort) — 11.6 mi, 342° N
Dome Hill Observation Deck (Viewpoint) — 12.2 mi, 103° E
Kishwaukee Valley Heritage Museum (Museum) — 12.2 mi, 221° SW
Hackmatack National Wildlife Refuge (National Wildlife Refuge) — 13.2 mi, 023° NE · 638 acres
Harvard Historical Museum (Museum) — 13.5 mi, 345° N
Belvidere High School PAC (Theatre) — 14.7 mi, 273° W
Former Carpentersville Dam (Historic Ruins) — 15.2 mi, 122° SE
Morraine Hills State Park (State Park) — 15.6 mi, 070° E
Chain O'Lakes State Park (State Park) — 22.9 mi, 047° NE

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