Columbia Bank Address: 101 S Portage Ave, Mattawa, WA 99349 Phone: (509) 932-5480 Hours: Mon: 10am-7pm Tue: 10am-7pm Wed: 10am-7pm Thu: 10am-7pm Fri: 10am-7pm Sat: 10am-4pm Banks Other Businesses: Columbia Bank at 101 Portage Ave, Mattawa, WA 99349 Desert Aire Motel at 5 Desert Aire Dr SW, Mattawa, WA 99349 Desert Aire Motel & Shell at 103 Thunderbird Way SW, Mattawa, WA 99349 La Popular at 405 Government Rd, Mattawa, WA 99349