Mc Laughlin, SD is a city located in Corson County, South Dakota and has a land area of 693.28 square miles (1,795.59 km2). The water area for the city is 34.55 square miles or 89.48 km2. There is one unique zip code in Mc Laughlin, South Dakota and it is 57642. The area code(s) for Mc Laughlin is 605.
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