Lake Forest, California

====Highways====
[[File:I-5 (CA).svg|27px|link=Interstate 5 in California]] [[Interstate 5 in California|Interstate 5]] travels along the western border of Lake Forest, forming the border with [[Laguna Hills]]. I-5 has two interchanges in the city: Lake Forest Drive and El Toro Road (Highway S18).

[[File:California 241.svg|25px|link= |alt=]] [[California State Route 241]] passes through the [[Foothill Ranch]] community of Lake Forest, in close proximity to several residential and commercial areas. SR 241 has three interchanges in Lake Forest: Alton Parkway, Lake Forest Drive (a partial interchange with a southbound exit and northbound entrance only), and Portola Parkway.

[[File:Orange County S18.svg|27px|link=California county routes in zone S#S18]] County Route S18, also known as El Toro Road, is a major road in Lake Forest, traveling the entire length and width of the city limits, about 10.5 miles. El Toro road has 8 major intersections in the city and passes through numerous communities, such as [[Portola Hills]]. At Live Oak Canyon Road, El Toro becomes Santiago Canyon Road, forming the far northeast boundary of Lake Forest, before heading through the mountains and becoming Chapman Avenue in northern Orange County.