Lake Forest incorporated as a city on December 20, 1991. Prior to incorporation, the community had been known as El Toro. Following a vote in 2000, Lake Forest expanded its city limits to include the master-planned developments of Foothill Ranch and Portola Hills. This expansion brought new homes and commercial centers to the Northeastern boundary of the city. Lake Forest (along with its neighboring cities Mission Viejo and Irvine) is ranked as one of the safest cities in the country.