This map highlights counties that have high percentages of ELL student enrollment including tribal areas in Montana, Alaska Native villages, and migrant labor areas in Washington, Oregon, and southern Idaho. A map showing absolute numbers of ELL students enrolled would look quite different: More than half of the region’s ELL students are concentrated in only 10 counties in the Seattle-Tacoma, Portland-Salem, Boise, Anchorage, and Yakima metro areas.

Source: National Center for Education Statistics, Common Core of Data, School Year 2002–2003 (the Common Core is a collection of data submitted by state education agencies)