Interstate 5 is 1,381 miles long and starts at the southern U.S. border town of San Ysidro, California, runs through the Pacific coast town of San Clemente, California.
iss060e021205 (Aug. 1, 2019) — Interstate 5 is 1,381 miles long and starts at the southern U.S. border town of San Ysidro, California, runs through the Pacific coast town of San Clemente, California, (pictured here) and ends at the northern U.S. border town of Blaine, Washington.