La Jolla (pronunciation , i.e. “lah-HOY-yah”) is a seaside resort community of up to 42,808 residents within the city of San Diego, California. Population figures are imprecise because La Jolla's borders are indistinct. Generally the community's border starts at Pacific Beach to the south and extends along the Pacific Ocean shore north to include Torrey Pines State Reserve ending at Del Mar, California. Along the way La Jolla encompasses neighborhoods like Bird Rock, Windansea, the La Jolla commercial "village", La Jolla Shores, La Jolla Farms, Torrey Pines, Mount Soledad and La Jolla Village (including La Jolla Village Square). Interstate 5 forms La Jolla's man-made border to the east, with the exception of some University of California, San Diego (UCSD) and commercial property east of I-5 and north of La Jolla Village Drive, which are also considered in the wider definition to be part of La Jolla. (More specifically, the City of San Diego defines La Jolla's eastern boundary as former Highway US 101, which is now Gilman Drive, excluding UCSD, and the northern boundary as the southern end of Torrey Pines municipal golf course. Others define La Jolla as all of ZIP code 92037.)