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Duplin County is located in the Southeastern Coastal Plain of North Carolina and is the 9th largest county in the state. Duplin County is approximately 819 square miles in size and consists primarily of agricultural land. Duplin is bounded by Wayne County to the north; Lenoir, Jones, and Onslow Counties to the east; Pender County to the south; and Sampson County to the west. Kenansville, the County Seat, is located in the center of the County. Duplin County is located approximately 80 miles from Raleigh, 55 miles from Wilmington, 65 miles from Fayetteville, and 55 miles from the Atlantic Ocean. Due to its proximity to the Atlantic Ocean and its location in the coastal plain, Duplin County experiences relatively mild temperatures. The annual average temperature is approximately 63 degrees with a prevailing southwesterly breeze. Summers are long and commonly have short periods of very hot, humid weather. Winters are generally short and mild with significant accumulations of ice and snow being unusual. The average annual rainfall is approximately 53 inches with most precipitation occurring during the summer months. The average frost free season is from mid April to mid November, slightly more than 200 days.