Mission Hills is an upscale affluent neighborhood of San Diego, California, USA. It is located on hills just south of the San Diego River valley and north of downtown San Diego, overlooking Old Town, Downtown San Diego, and San Diego Bay. It was subdivided on January 20, 1908 as a smaller portion of what is now referred to as Mission Hills. The City of San Diego describes Mission Hills as being the area north of Horton Avenue, South of Mission Valley, West of Dove Street, and East of the Old Town community area. Mission Hills is part of the 92103 zip code area. It shares this zip code with Hillcrest, a neighborhood of San Diego East of Dove Street. It is part of the Uptown community planning area.