Pine Mountain Lake is a private gated community and a census-designated place in Tuolumne County, California. It is located 0.8 miles north and east of Groveland. Pine Mountain Lake sits at an elevation of 2,795 feet. The 2010 United States census reported Pine Mountain Lake's population was 2,796. The ZIP Code is 95321. The community is inside area code 209. The "Gateway to Yosemite", PML is an all-seasons vacation and retirement community.