Oacoma South Dakota Map

About Oacoma, South Dakota

Oacoma is a locality in Lyman County, South Dakota, United States. It is a small community with a population of 548. The population density is 74.3 people per km². Oacoma is located at 43.7961°N, 99.3957°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 57365.

Oacoma rests on the broad, sun-baked plains where the Missouri River, tamed into a vast reservoir, laps at the land. It lies 123.7 miles south-south-west of Aberdeen, SD (from Aberdeen, SD: bearing 202°T), and is situated 3.4 miles west-south-west of Chamberlain. The air here carries the dry scent of prairie grasses and the faint, mineral tang of the water, a constant presence even when unseen, shaping the horizon with its immense, shimmering expanse. Low-lying hills, their slopes softened by the relentless wind and the slow march of seasons, rise gently from the flatlands, their contours blurring into the hazy distance under a sky that seems to stretch on forever, vast and indifferent. The light at dusk often paints these undulations in hues of ochre and deep rose, a fleeting, quiet glory that settles over Oacoma as the day draws to a close. The history of Oacoma is intimately tied to the great river and the land it irrigates, a story of pioneers and perseverance that echoes in the weathered structures and the enduring spirit of its people. Once a vital stop along the river's course, Oacoma now finds its economic pulse linked to the recreational bounty of the Missouri, drawing visitors to its shores for fishing, boating, and the simple pleasure of wide-open spaces. The vastness of Lake Sharpe, a product of the river's modern transformation, offers a watery playground, its shores dotted with marinas and campgrounds that hum with activity during the warmer months. Though small, Oacoma holds a quiet dignity, a testament to the resilience of life on the prairie, where the economy is as much about the harvest of the land as it is about the gifts of the water.

About This Oacoma Map Page

This page provides an embedded street and satellite map of Oacoma, South Dakota — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 43.796105, -99.395657. 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 Oacoma and Lyman County.

Detailed location data for Oacoma includes the ZIP code (57365), telephone area code (605), county seat of Lyman County (Kennebec), and school district assignment (Chamberlain School District 07-1). 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 Oacoma is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.