Mississippi has the largest Black population share of any state, 36.3 percent, and its vote divides along that line more sharply than anywhere else in the country. Donald Trump carried the state by 22.9 points in 2024 — 747,744 votes to 466,668 — and Republicans have won every presidential election here since 1980, when the state moved away from Jimmy Carter, the last Democrat to carry it, four years earlier. Twenty of the eighty-two counties voted Democratic in 2024. The other sixty-two voted Republican. Almost none of them sit near the middle: the split runs by place, and by place it runs deep.
The Democratic twenty trace the Mississippi Delta and the capital. Claiborne County, the most Democratic in the state, voted D+67.6; Jefferson County, next to it, D+66.3; Hinds County, which holds Jackson, gave Kamala Harris 62,840 votes to 22,816, a margin of D+46.1. The Republican counties run the white-majority hills and the Gulf Coast: Itawamba County, the most Republican, voted R+80.0, with Tishomingo next at R+78.9. The lines barely move between cycles — Marshall County, D+3.1 in 2020, was the rare 2024 flip, to R+7.3 — and the statewide margin has held in a narrow Republican band for a generation.
Underneath sits the poorest state in the country. Median household income was $56,447 in the 2024 ACS, last of the fifty states and far below the $80,734 national figure; the overall poverty rate was 19 percent, also last, and a quarter of children live in poverty. A quarter of adults, 25.3 percent, hold a bachelor’s degree, 49th. Mississippi ranks third in Evangelical Protestant adherents, at 39 percent. In 2026 Senator Cindy Hyde-Smith, the Republican incumbent, faces Democrat Scott Colom and independent Ty Pinkins; she won an 80.8 percent primary in March, and a December runoff would follow only if no candidate clears a majority in November.