American Postal Workers Union representing Portland, Astoria, Aurora, Banks, Battleground, Beaverton, Boring, Brush Prairie, Canby, Columbia City, Estacada, Gladstone, Gresham, Hillsboro, Kelso, Lake Oswego, Longview, Marylhurst, McMinnville, Moro, Mosier, Newberg, Oregon City, Rufus, St Helens, Sherwood, The Dalles, Troutdale, Tualatin, Wasco, West Linn, Wilsonville, Woodburn, Woodland