America’s Finest City, San Diego, is the seventh largest city in the country per the 2000 census; it has since dropped to the eighth largest city. Well-known as a military town, San Diego’s economy is diversified, from defense contracting to the high-tech, biotech, and tourism-based economies. With its many days of sun and relatively few days of rain, San Diego’s climate is often viewed as among the best in the country, with a minimal number of thunderstorms each year. Nighttime costal low clouds and fog is commonplace, as the ocean moderates daytime temperatures.
A growing Southern California city, San Diego has expanded dramatically as its economy continues to grow and more people move into the area from around the country. Many people living in San Diego preface their conversations, “So, where are you from?” because so many have immigrated to this region. Some have bumper stickers that declare themselves natives after a year’s stay in San Diego. However, as more traditional industries take hold in addition to the transient military population, the city of San Diego is growing into its own reputation, separate from its large neighbor to the north.
Having one of the most fully developed freeway systems of any urban area in the state, San Diegans are fortunate to have six north-south freeway routes along the Interstate 8 corridor and six east-west freeway routes along the Interstate 5 corridor. However, traffic congestion is an issue as regional employment centers at Sorrento Valley, Mission Valley, Otay Mesa, Downtown, and the Golden Triangle have evolved.
This page presents the main freeways and highways in the San Diego region, including the northern parts of San Diego County.