Eureka South Dakota Map
Explore Eureka, 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.
Interactive Map of Eureka, South Dakota
How to Use This Eureka, South Dakota Map
This interactive map shows the street layout and satellite imagery for Eureka, 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 Eureka.
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 | Eureka |
| State | South Dakota (SD) |
| County | McPherson County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 45.769426 |
| Longitude | -99.619562 |
| Population | 813 |
| Density | 336.4 /km² |
| Incorporated | Yes |
| ZIP Code | 57437 |
| Area Code | 605 |
| County Seat | Leola |
| School District | Eureka School District 44-1 |
About Eureka, South Dakota
Eureka is a locality in McPherson County, South Dakota, United States. It is a small community with a population of 813. The population density is 336.4 people per km². Eureka is located at 45.7694°N, 99.6196°W. It observes the Central Time (America/Chicago) timezone. Eureka is an incorporated locality. ZIP code: 57437.Eureka emerges from the vast, open expanse of the northern plains, a place where the sky commands a greater presence than the earth itself. It lies 58.7 miles west-northwest of Aberdeen, SD (from Aberdeen, SD: bearing 291°T), and is situated 42.2 miles east-northeast of Mobridge. The landscape here is a wide, level theater of grasses and grain, marked by the quiet presence of Eureka Lake, which holds the stillness of the afternoon light in its shallow basin. A few miles to the south, the channel of Spring Creek traces a modest path through the soil, carving subtle variations into the terrain that otherwise stretches unbroken toward a distant, hazy horizon. The air carries the scent of dry earth and ripening stalks, and during the transition of dusk, the light turns a bruised, glowing violet that seems to press the color out of the fields and into the very grain of the wooden structures.
German-Russian heritage remains etched into the character of Eureka, a legacy of families who arrived with little more than iron will and an intimate knowledge of the plow. The local economy relies on the steady, rhythmic cycle of agriculture, where the success of the harvest dictates the pulse of the main street and the quiet commerce of the storefronts. Just a mile away, the Mcpherson County Waterfowl Production Area provides a sanctuary for migratory birds, offering a patch of untamed wildness that contrasts with the disciplined geometry of the surrounding farms. Life in Eureka follows the slow, deliberate tempo of the seasons, maintaining a persistent, grounded endurance that defines those who choose to anchor themselves amidst this expansive, wind-swept solitude.
Nearby Outdoor Places
- Mcpherson County Waterfowl Production Area (Resource Management Area) — 0.9 mi, 343° N
- Simpson (State Conservation Area) — 0.9 mi, 017° N
- Eureka (State Conservation Area) — 1.2 mi, 219° SW
- Campbell County Waterfowl Production Area (Resource Management Area) — 7.1 mi, 279° W
- Salt Lake (State Recreation Area) — 15.1 mi, 231° SW
- Spring Lake (State Recreation Area) — 25.4 mi, 201° S
- Mile 173 Border Monument (Monument) — 28.2 mi, 295° NW
- National Waterfowl Production Area (Nature Reserve) — 31.1 mi, 030° NE
- Mile 186½ North Dakota South Dakota boundary marker (Monument) — 40.9 mi, 287° W
- Walleye Up Statue (Public Artwork) — 42.7 mi, 248° W
- The Klein Museum (Museum) — 42.9 mi, 250° W
- Old Settlers Monument (Monument) — 43.8 mi, 000° N
- Logan County Waterfowl Production Area (National Wildlife Refuge) — 47.4 mi, 008° N · 326 acres
- Amphitheatre (Theatre) — 50.9 mi, 108° E
- Sitting Bull Visitor Center (Attraction) — 55.3 mi, 294° NW
- Dacotah Prairie Museum (Museum) — 58.6 mi, 111° E
- Jewett Theater (Theatre) — 59.2 mi, 111° E
- Long Lake National Wildlife Refuge (National Wildlife Refuge) — 67.8 mi, 344° N · 28k acres
- Old Cannon (Registered Battlefield) — 77.0 mi, 106° E
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About This Eureka Map Page
This page provides an embedded street and satellite map of Eureka, South Dakota. Coordinates: 45.769426, -99.619562. 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 Eureka includes the ZIP code (57437), telephone area code (605), county seat of McPherson County (Leola), and school district assignment (Eureka School District 44-1).
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. |
