What is Spring Valley's Boundary

At roughly thirteen square miles, Spring Valley is the largest unincorporated community of San Diego County. It borders the cities of La Mesa and El Cajon to the North, Rancho San Diego & Jamul to the East, Bonita and the San Diego National Wildlife Refuge to the South, and the City of San Diego & Lemon Grove to the West. Within the community of Spring Valley there are a variety of smaller neighborhoods: Casa de Oro, Calavo Gardens, La Presa, Dictionary Hill, Mt. Helix, La Mesa Country Club, Homelands and Bancroft Pont.