New Effington is a town in Roberts County, South Dakota, United States. The population was 256 at the 2010 census.
New Effington was laid out in 1913, after a proposed railroad further away from the original city Effington spurred the need to move the town. Needing a new name they simply added "New", the original being a reference to one of the first women (named Ellie) to get a homestead in the original town.
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