The Lamar County School District (LCSD) is a public school district based in Purvis, Mississippi (USA). In addition to Purvis, the district also serves the town of Sumrall; the communities of Arnold Line, Baxterville, Lumberton, Oak Grove, and West Hattiesburg; and portions of Hattiesburg, as well as most rural areas in Lamar County. The district extends into Pearl River County, where it serves the rest of Lumberton.