The Pacific coastline of the United States spans approximately 3,000 miles, including the coasts of California, Oregon, and Washington.

The Pacific coastline is known for its varied geography, stretching approximately 3,000 miles from the southern tip of California to the northern edge of Washington. This measurement includes the main coastline and does not account for the detailed shoreline of bays and estuaries, which can make the total much longer. The coastline offers stunning beaches, rugged cliffs, and scenic landscapes, contributing significantly to the natural beauty and tourism of the region.