Interstate 5 in California.
section of Interstate Highway in California, United States
California Cities Rank Among Dirtiest In America Despite Gavin Newsom’s Green Energy Largesse
Californian cities rank among the dirtiest in America, with ten cities in the Golden State tying for the worst median air quality in the U.S., according to the lawn care website known as LawnStarter. San Bernardino was…
Reporting · 1 source · Jul 2, 2026Read itThe journal
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About Interstate 5 in California
Interstate 5 (I-5) is a major north–south route of the Interstate Highway System in the United States, running largely parallel to the Pacific Coast between the Mexican border and the Canadian border. The segment of I-5 in California runs across the length of the state from the Mexican border at the San Ysidro Port of Entry in the San Ysidro neighborhood of San Diego to the Oregon state line south of the Medford-Ashland metropolitan area. It is the longest interstate in California at 796.77 miles (1,282.28 km), and accounts for more than half of I-5's total length of 1,381.29 miles (2,222.97 km). It is also the second longest stretch of Interstate Highway with a single designation within a single state after I-10 in Texas.
Everything about Interstate 5 in California →- Country
- United States
- Inception
- July 1, 1964