The 5th District is geographically the largest of the five supervisorial districts, and covers most of the Monterey Peninsula and southern coastline of Monterey County down to the southern county border with San Luis Obispo County. The 5th District includes the cities of Carmel-by-the-Sea, Monterey, and Pacific Grove; the unincorporated communities of Carmel Valley, Big Sur, Pebble Beach, San Benancio, Corral de Tierra, and Jamesburg; military installations at the Presidio of Monterey, the Defense Language Institute, and the Naval Postgraduate School; and the Ventana Wilderness area of the Los Padres National Forest.