Saint Onge, South Dakota
Saint Onge is an unincorporated community in Lawrence County, South Dakota, United States. Although not tracked by the Census Bureau, Saint Onge has been assigned the ZIP code of 57779.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.
