Some of the more distinctive features of west coast demographics are the size and composition of the region's foreign born population, driven largely by the immigrant population in California. As shown below, more than one quarter (27%) of the population of California was born outside of the U.S. – more than double the foreign-born share of the population in the other west coast states, or in the nation as a whole.
Diversity in the national origins of the foreign born population across the West Coast states is pronounced. As shown below, California’s immigrant population is dominated by those born in Latin America, while the immigrant population in Washington includes a larger share of Asians and a higher percentage of people born in Canada, Europe and the Africa/Oceania region. Oregon has a smaller foreign born population than the nation as a whole and an immigrant mix that is in-between that of California and Washington.