Explore St. Onge, South Dakota, with this interactive street and satellite map. You can “grab” the St. Onge, SD street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
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| City | St. Onge |
| State | South Dakota (SD) |
| County | Lawrence |
| Country | United States of America |
| Timezone | Mountain Time (America/Denver) |
| Latitude | 44.546651 |
| Longitude | -103.721031 |
| Population | 40 |
| Density | 13.2 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 57779 |
| Area Code | 605 |
| County Seat | Deadwood |
| School District | Spearfish School District 40-2 |
St. Onge is a locality in Lawrence County, South Dakota, United States. It is a small community with a population of 40. The population density is 13.2 people per km². St. Onge is located at 44.5467°N, 103.7210°W. It observes the Mountain Time (America/Denver) timezone. ZIP code: 57779.
St. Onge sprawls across a wide, sun-bleached expanse where the Black Hills begin their slow, patient rise from the prairie. It lies 40.3 miles north-west of Rapid City, SD (from Rapid City, SD: bearing 323°T), and is situated 7.8 miles east-north-east of Spearfish. The land here is a study in subtle transitions: rolling pastures, brushed with the ochre of dry grass, give way to scattered stands of ponderosa pine, their needles catching the light with a dusty, golden sheen. The air, especially in the long afternoons, carries a dry, clean scent, a blend of sagebrush and distant woodsmoke, and the sky above is a vast, unbroken canvas, immense and ever-present. The character of St. Onge is one of quiet perseverance, a place where the elements have a strong say in the day-to-day, and where the horizon feels as much a part of life as the dusty road itself. The history of St. Onge is etched in the enduring spirit of those who sought a living from this rugged country, a story tied to the hardy pioneers who first homesteaded these lands. The local economy, though modest, still draws strength from the surrounding agricultural endeavors, with cattle ranching and hay production forming the backbone of its sustenance. This is a place where the past whispers in the wind that rustles through the sparse vegetation, a reminder of the long, arduous journeys that brought people to this particular stretch of South Dakota. A notable feature of St. Onge is its profound connection to the wider natural world; the sheer openness of the landscape fosters a sense of introspection, and the quality of light at dusk, when the sun dips low and paints the western sky in hues of rose and deep violet, is a spectacle that seems to hold the very breath of the land.
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This page provides an embedded street and satellite map of St. Onge, South Dakota — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 44.546651, -103.721031. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on St. Onge and Lawrence County.
Detailed location data for St. Onge includes the ZIP code (57779), telephone area code (605), county seat of Lawrence County (Deadwood), and school district assignment (Spearfish School District 40-2). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct St. Onge is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |