Spanning the highly desirable city of Folsom, 95630 covers a vast footprint of suburban neighborhoods, historic districts, and tech campuses. It is bounded to the north by Folsom Lake and the American River, and to the west by the Sacramento County line at Lake Natoma and Orangevale. Its eastern boundary borders El Dorado Hills, and its southern edge extends past Highway 50 into the rapidly growing Folsom Ranch development.