 San Diego–Tijuana urbanity stretches along the coastline from the northernmost city of Oceanside to the southernmost city of Rosarito Beach.The urban area of San Diego–Tijuana is the 72nd largest in the world and 11th largest in North America, with a population of 5,330,000.The development between San Diego and the Baja California Gold Coast is so great that 300,000 visitors cross into Tijuana daily from Greater San Diego.