The map to the left shows the district boundaries. The shaded regions are by trustee regions. Royal Blue book markers are the current school locations with a formally staffed teacher librarian. By clicking the icon in the upper left, you can turn off the markers noting Sweetwater Union's High Schools and Middle Schools. The other book markers note the location of public library branches:
Yellow: County of San Diego
Red: City of National City
Navy Blue: City of San Diego
Green: City of Chula Vista