Mississippi's 3rd congressional district is a congressional district in the U.S state of Mississippi. The district is in the middle of the state and goes from the border of Louisiana in the west to the border of Alabama in the east. The large cities in the district include Meridian, Starkville, Pearl, and Natchez. It also includes most of the wealthier parts of Jackson. The people who live in the district elect a person to represent the district in the United States House of Representatives. The current representative is Republican Michael Guest.