Explore St. Clair, Missouri, 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 St. Clair, Missouri. 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 Missouri 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 St. Clair.
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 | St. Clair |
| State | Missouri (MO) |
| County | Franklin County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.346595 |
| Longitude | -90.993561 |
| Population | 4,791 |
| Density | 387.2 /km² |
| Incorporated | Yes |
| ZIP Code | 63077 |
| Area Code | 314 |
| County Seat | Union |
| School District | St. Clair R-XIII School District |
St. Clair emerges from the undulating terrain of the northern Ozark foothills where the horizon is defined by the distant, hazy silhouette of Pea Ridge. It lies 7.4 miles south-southeast of Union, MO (from Union, MO: bearing 168°T), and is situated 14.8 miles south of Washington. Sunlight here possesses a distinct, pale clarity, casting long shadows across the landscape that stretches toward the quiet, meandering path of West Fork Brush Creek. Within the immediate footprint of the land, the earth yields to the modest, shaded lawns of Main Street Park, providing a central anchor for the daily drift of residents. Farther out, the terrain holds the stillness of Trutsch Lakes, where the water reflects the shifting moods of a sky that feels vast and unencumbered by the pressure of taller topography.
Economic life in St. Clair bears the quiet marks of a legacy built on the extraction and processing of the region’s mineral wealth, a history that once shaped the local industry with the same persistence found in the limestone beneath the soil. The rhythm of daily existence reflects a plain-spoken, deliberate pace, where the labor of the past has softened into the steady, mechanical hum of modern trade and local commerce. Visitors and residents alike move through a space where Bennett Hollow marks a deeper, shadowed crease in the geography, reminding those who traverse it of the ancient, slow-moving processes that carved the region into its current form. Whether through the persistent influence of the early industrial threads or the simple, enduring utility of the public commons, St. Clair maintains an internal focus that prioritizes the immediate, tangible reality of the Missouri interior over the noise of the wider world.
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This page provides an embedded street and satellite map of St. Clair, Missouri. Coordinates: 38.346595, -90.993561. 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 St. Clair includes the ZIP code (63077), telephone area code (314), county seat of Franklin County (Union), and school district assignment (St. Clair R-XIII School District).
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. |