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Lake Hemet
Location	Riverside County, California
Coordinates	33°40′00″N, 116°41′40″WCoordinates: 33°40′00″N, 116°41′40″W
Lake type	reservoir
Primary sources	San Jacinto River
Primary outflows	San Jacinto River
Basin countries	United States
Surface area	1.7 km²
Water volume	1 km³
Shore length1	19 km
Surface elevation	1,323 m
1 Shore length is not a well-defined measure.

Lake Hemet is a water storage reservoir located in the San Jacinto Mountains in Riverside County, California, with a capacity of 260 billion US gallons (8,100 acre-feet, 1 km³) of water. It was created in 1895 with the construction of the Hemet Dam, and is owned and operated by the Lake Hemet Municipal Water District (LHMWD).

13 miles (23 km) SW of Palm Springs, California, United States

Coordinates: 33°40′00″N, 116°41′40″W (33.66659147°, -116.69438729°)

Lake Hemet is an artificial lake in the San Jacinto Mountains, 4,340 ft (1,323 m) above sea level. Lake Hemet is part of the San Bernardino National Forest. Lake Hemet has a surface area of 420 acres (1.7 km²) of water and 12 miles (19 km) of shoreline. Fishing is the primary attraction to the lake, which is stocked with rainbow trout, channel catfish, bluegill and Largemouth bass. Other Lake Hemet activities include boating, picnicking, hiking, and camping in the surrounding areas.

LHMWD provides water from Lake Hemet to a geographically diverse service area in Riverside County, including portions of the cities of Hemet and San Jacinto, and to the isolated but growing 4,500-foot high San Jacinto Mountain community of Garner Valley.

LHMWD's customers are represented by a publicly-elected board of five directors in 5 divisions, representing approximately 13,800 domestic and 51 agricultural customers within a 26-square mile (67 km²) service area.

Service connections

• 1,800 in 1955
• 1,873 in 1957
• 2,623 in 1962
• 3,747 in 1967
• 5,000 in 1972
• 6,850 in 1977
• 13,636 in 2003
• 13,960 in 2004

Length of Lake Hemet Municipal Water District Pipeline

• 30.8 miles (49.6 km) in 1957
• 53.59 miles (86.7 km) in 1962
• 78.29 miles (127.6 km) in 1967
• 96.82 miles (155.8 km) in 1972
• 127 miles (204 km) in 1977
• 136 miles (219 km) in 2003
• 139 miles (224 km) in 2004

Lake Hemet Dam 1895

Development of the San Jacinto Valley can be traced to 1887, with the formation of the Lake Hemet Water Company and the Hemet Land Company by Edward L. Mayberry, his wealthy San Francisco friend, William F. Whittier, and their partners. These two companies allowed the partnership to acquire land and water rights from the San Jacinto Valley to the west end of Garner Valley in the San Jacinto Mountains.

Lake Hemet Water Company placed the first stone of the Hemet Dam on January 6, 1891. When this arched masonry structure was completed in 1895 at a height of 122.5 feet, it was the largest solid masonry dam in the world--a title it would retain until the construction of Roosevelt Dam in Arizona in 1911. In 1923, the Hemet dam was raised to a height of 135 feet.

LHMWD was founded on Sept. 27, 1955 to take over the activities of the Lake Hemet Water Company, purchasing the Lake Hemet water system with funds raised through a bond initiative.

• Lake Hemet Municipal Water District