Explore Fort Thompson, South Dakota, 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 Fort Thompson, South Dakota. 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 South Dakota 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 Fort Thompson.
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 | Fort Thompson |
| State | South Dakota (SD) |
| County | Buffalo County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 44.054922 |
| Longitude | -99.404829 |
| Population | 1,224 |
| Density | 45.5 /km² |
| Incorporated | N/A |
| ZIP Code | 57339 |
| Area Code | 605 |
| County Seat | Gann Valley |
| School District | Chamberlain School District 07-1 |
Fort Thompson commands a vast, open expanse where the horizon stretches thin and flat against a pale, atmospheric dome. It lies 49.7 miles east-southeast of Pierre, SD (from Pierre, SD: bearing 114°T), and is situated 18.6 miles north-northwest of Chamberlain. The landscape surrounding Fort Thompson is defined by the arid, sweeping plains of the interior, where the dry earth turns a bruised purple as the sun dips toward the western edge. A mile away, the expansive waters of Lake Francis Case hold the sky in a mirror of shifting gray, while the smaller, meandering path of Soldier Creek cuts through the silt-heavy ground nearby. Far to the west, the faint, jagged silhouette of the Ree Heights punctuates the skyline, a reminder of the rising country that breaks the monotony of the prairie floor.
Fort Thompson resides entirely within the protective boundaries of the Sharpe Recreation Area, a designation that preserves the quietude of these high, wind-swept bluffs. The economy here moves at the deliberate pace of the seasons, rooted in the stewardship of the land and the endurance of the Crow Creek Sioux Tribe, whose heritage informs the cultural gravity of the location. Life in Fort Thompson is marked by the cycles of the plains, where the harsh winters demand a sturdy resilience and the summers arrive with a shimmering, relentless heat that settles over the grasslands. It remains a place where the history of the frontier is not merely a record of the past, but an active, breathing presence in the way the light catches the tall grass and the way the wind carries the silence across the open range.
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This page provides an embedded street and satellite map of Fort Thompson, South Dakota. Coordinates: 44.054922, -99.404829. 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 Fort Thompson includes the ZIP code (57339), telephone area code (605), county seat of Buffalo County (Gann Valley), and school district assignment (Chamberlain School District 07-1).
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. |