Locust Grove, OK is a city located in Mayes County, Oklahoma and has a land area of 123.57 square miles (320.05 km2). The water area for the city is 5.42 square miles or 14.04 km2. There is one unique zip code in Locust Grove, Oklahoma and it is 74352. The area code(s) for Locust Grove is 918/539.
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