San Diego, California
The city of San Diego is the county seat for San Diego County, California, which comprises the San Diego-Chula Vista-Carlsbad MSA. The area sits along the coast of the Pacific Ocean and is known for its affiliation with 16 military installations of the U.S. Coast Guard, Marine Corps, and Navy.
The county borders Mexico at the San Ysidro Port of Entry and is part of the largest shared metropolitan area between the United States and Mexico, known as the San Diego-Tijuana transborder metropolitan area.
San Diego County residents approved a 20-year half-cent sales tax in 1987 known as TransNet, to fund various transportation projects in the region. It became one of California’s largest transportation improvement programs. The funds are used for local, highway, and transit projects throughout the county and are administered by the San Diego Association of Governments (SANDAG).
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