Tonica Illinois Map
Explore Tonica, 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 Tonica, Illinois
How to Use This Tonica, Illinois Map
This interactive map shows the street layout and satellite imagery for Tonica, 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 Tonica.
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 | Tonica |
| State | Illinois (IL) |
| County | LaSalle County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 41.215868 |
| Longitude | -89.066749 |
| Population | 749 |
| Density | 212.2 /km² |
| Incorporated | Yes |
| ZIP Code | 61370 |
| Area Code | 815 |
| County Seat | Ottawa |
| School District | LaSalle-Peru Township High School District 120 |
About Tonica, Illinois
Tonica is a locality in LaSalle County, Illinois, United States. It is a small community with a population of 749. The population density is 212.2 people per km². Tonica is located at 41.2159°N, 89.0667°W. It observes the Central Time (America/Chicago) timezone. Tonica is an incorporated locality. ZIP code: 61370.Tonica sits upon a plateau of rich, dark earth where the horizon stretches toward the sky in a vast, unencumbered arc. It lies 13.7 miles west-northwest of Streator, IL (from Streator, IL: bearing 299°T), and is situated 8.4 miles south-southeast of Peru. Bailey Creek carves a quiet, meandering path through the surrounding fields, its waters reflecting the shifting moods of the Midwestern light as it moves toward the deeper drainage basins of the region. Only three miles away, the rugged sandstone canyons and lush greenery of Matthiessen State Park offer a stark contrast to the flat, orderly geometry of the nearby farmland. On clear days, the distant, hazy silhouette of High Ridge marks the edge of the world, while the serene waters of Alleman Lake rest in the quiet periphery, grounding the landscape in a stillness that persists through every season.
Tonica draws its character from the cycles of the soil, maintaining a rhythm dictated by the planting and harvest of the expansive corn and soybean fields that define the local economy. The settlement grew from the steady labor of those who recognized the fertility of this inland expanse, building a quiet center that favors the endurance of brick and the simplicity of Midwestern craftsmanship. While the influence of the sprawling urban grids to the north occasionally brushes against the edges of the plains, the daily life of Tonica remains focused on the immediate, tangible work of the land. Deep within the earth, the geological history of the region is echoed in the shadowed depths of Saint Louis Canyon, a reminder that even in this expanse of flat prairie, time has carved profound and lasting marks upon the geography.
Nearby Outdoor Places
- Matthiessen State Park (State Park) — 3.3 mi, 031° NE
- Unknown Park (Local Park) — 5.3 mi, 002° N
- Starved Rock State Park (State Conservation Area) — 6.6 mi, 013° N
- Starved Rock Nature Preserve (Nature Reserve) — 7.2 mi, 012° N
- Saint Louis Canyon (Viewpoint) — 7.8 mi, 024° NE
- Stage 212 (Theatre) — 7.9 mi, 349° N
- Outside Amphitheather (Theatre) — 8.1 mi, 028° NE
- Pecumsaugan Creek/ Blackball Mines State Natural Area (State Conservation Area) — 8.3 mi, 004° N
- Edgewood Park (Local Park) — 8.3 mi, 240° SW
- Plum Island Site (Historic Ruins) — 8.4 mi, 027° NE
- Veteran'S Memorial Park (Local Recreation) — 9.4 mi, 338° N
- Buffalo Rock State Park (State Park) — 10.0 mi, 045° NE
- AMC Classic Peru Mall 8 (Cinema) — 10.1 mi, 342° N
- West End Gun Club (Park) — 11.1 mi, 305° NW
- Sue and Wes Dixon Waterfowl Refuge at Hennepin & Hopper Lakes (Private Recreation) — 12.6 mi, 265° W
- Pluto Monument (Monument) — 12.9 mi, 111° E
- Boy Scout of America (Public Artwork) — 13.4 mi, 051° NE
- Vietnam Veterans Memorial (Monument) — 13.8 mi, 118° SE
- ATSF Depot (Attraction) — 14.1 mi, 117° SE
- Remembering the Radium Girls (Monument) — 14.7 mi, 052° NE
- Hennepin Canal (State Recreation Area) — 15.6 mi, 290° W
- Chautauqua National Wildlife Refuge (National Wildlife Refuge) — 17.3 mi, 240° SW · 13k acres
- Birthplace of Wild Bill Hickok (Attraction) — 17.3 mi, 357° N
- Bureau County Historical Museum (Museum) — 23.3 mi, 297° NW
- Earlville History Museum (Museum) — 26.9 mi, 016° N
- Town Theater (Cinema) — 30.0 mi, 227° SW
- Standard Oil Gas Station (Attraction) — 31.7 mi, 118° SE
- Ladd School Subway (Attraction) — 32.1 mi, 136° SE
- Route 66 Association Hall of Fame & Museum (Museum) — 32.5 mi, 135° SE
- Midewin Other (National Forest) — 45.0 mi, 075° E · 18k acres
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About This Tonica Map Page
This page provides an embedded street and satellite map of Tonica, Illinois. Coordinates: 41.215868, -89.066749. 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 Tonica includes the ZIP code (61370), telephone area code (815), county seat of LaSalle County (Ottawa), and school district assignment (LaSalle-Peru Township High School District 120).
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. |
