Map of St. Onge CDP

Saint Onge (pronounced “saynt AHNJ'”) is an unincorporated community and census-designated place (CDP) in Lawrence County, South Dakota, United States. As of the 2020 census, the population was 170.

St. Onge CDP overview:
Name:	St. Onge CDP
LSAD Code:	57
LSAD Description:	CDP (suffix)
State:	South Dakota
County:	Lawrence County
Elevation:	3,432 ft (1,046 m)
Total Area:	1.34 sq mi (3.48 km²)
Land Area:	1.34 sq mi (3.48 km²)
Water Area:	0.00 sq mi (0.00 km²)
Total Population:	170
Population Density:	126.39/sq mi (48.82/km²)
ZIP code:	57779
FIPS code:	4657260
GNISfeature ID:	1257699

Online Interactive Map

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St. Onge online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

St. Onge location map. Where is St. Onge CDP?

St. Onge location on the U.S. Map. Where is St. Onge CDP. — St. Onge location on the U.S. Map.

St. Onge location on the South Dakota map. Where is St. Onge CDP. — Location of St. Onge in South Dakota.

History

Saint Onge was laid out in 1881. The community was named for Henry St. Onge, a pioneer settler. A post office called Saint Onge has been in operation since 1881. Saint Onge has been assigned the ZIP code of 57779.

St. Onge Road Map

St. Onge city Satellite Map

Geography

St. Onge is in northeastern Lawrence County, along South Dakota Highway 34, which leads northwest 12 miles (19 km) to Belle Fourche and southeast 7 miles (11 km) to Interstate 90 at Whitewood. Spearfish, the largest community in the county, is 12 miles (19 km) to the southwest.

According to the U.S. Census Bureau, the St. Onge CDP has an area of 1.4 square miles (3.5 km), all land. False Bottom Creek forms the western edge of the community, and its tributary Dry Creek forms the northeastern edge. False Bottom Creek flows northwest to the Redwater River, which in turn is a tributary of the Belle Fourche River, flowing east to the Missouri.