Smiths Grove, KY is a city located in Warren County, Kentucky and has a land area of 103.28 square miles (267.49 km2). The water area for the city is 0.52 square miles or 1.35 km2. There is one unique zip code in Smiths Grove, Kentucky and it is 42171. The area code(s) for Smiths Grove is 270/364.
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