Counties during the Civil War

County	Date Created	Parent County	County Seat
Adams	1799	Natchez District	Natchez
Jefferson	1799	Natchez	Fayette
Claiborne	1802	Jefferson	Port Gibson
Wilkinson	1802	Adams	Woodville
Amite	1809	Wilkinson	Liberty
Franklin	1809	Adams	Meadville
Warren	1809	Natchez District	Vicksburg
Wayne	1809	Mississippi Territory's "Old"Washington County	Waynesboro
Greene	1811	Amite / Franklin / Wayne	Leakesville
Marion	1811	Amite / Wayne / Franklin	Columbia
Hancock	1812	Mobile District	Bay Saint Louis
Jackson	1812	Mobile District	Pascagoula
Lawrence	1814	Marion	Monticello
Pike	1815	Marion	Magnolia
Covington	1819	Lawrence / Wayne	Collins
Perry	1820	Greene	New Augusta
Hinds	1821	Choctaw Cession of 1820	Jackson
Monroe	1821	Chickasaw Cession of 1821	Aberdeen
Copiah	1823	Hinds	Hazlehurst
Yazoo	1823	Hinds	Yazoo City
Simpson	1824	Choctaw Cession of 1820	Mendenhall
Jones	1826	Covington / Wayne	Laurel / Ellisville
Washington	1827	Warren / Yazoo	Greenville
Madison	1828	Yazoo	Canton
Rankin	1828	Hinds	Brandon
Lowndes	1830	Monroe	Columbus
Attala	1833	Choctaw Cession of 1830	Kosciusko
Carroll	1833	Choctaw Cession	Carrollton
Choctaw	1833	Choctaw Cession	Ackerman
Clarke	1833	Choctaw Cession of 1830	Quitman
Holmes	1833	Yazoo	Lexington
Jasper	1833	Indian Lands	Bay Springs
Kemper	1833	Choctaw Cession of 1830	De Kalb
Lauderdale	1833	Choctaw Cession of 1833	Meridian
Leake	1833	Choctaw Cession	Carthage
Neshoba	1833	Choctaw Cession of 1830	Philadelphia
Noxubee	1833	Choctaw Cession of 1830	Macon
Oktibbeha	1833	Choctaw Cession of 1830	Starkville
Scott	1833	Choctaw Cession of 1832	Forest
Smith	1833	Choctaw Cession of 1830	Raleigh
Tallahatchie	1833	Choctaw Cession of 1830	Charleston
Winston	1833	Choctaw Cession of 1830	Louisville
Yalobusha	1833	Choctaw Cession of 1830	Water Valley
Bolivar	1836	Choctaw Cession Of 1830	Cleveland
Chickasaw	1836	Chickasaw Cession of 1830	Houston
Coahoma	1836	Chickasaw Cession of 1836	Clarksdale
DeSoto	1836	Indian Lands	Hernando
Itawamba	1836	Chickasaw Cession of 1832	Fulton
Lafayette	1836	Chickasaw Cession	Oxford
Marshall	1836	Chickasaw Cession of 1832	Holly Springs
Newton	1836	Neshoba	Decatur
Panola	1836	Chickasaw Cession of 1830	Batesville
Pontotoc	1836	Chickasaw Cession of 1832	Pontotoc
Tippah	1836	Chickasaw Cession of 1832	Ripley
Tishomingo	1836	Chickasaw Cession of 1832	Iuka
Tunica	1836	Chickasaw Cession of 1832	Tunica
Harrison	1841	Hancock / Jackson	Gulfport
Issaquena	1844	Washington	Mayersville
Sunflower	1844	Bolivar	Indianola
Calhoun	1852	Chickasaw / Lafayette / Yalobusha	Pittsboro
Lee	1866	Itawamba / Pontotoc	Tupelo