Ernst Irrigation ernstirrigation.com (503) 633-1111 For more than 100 years, Ernst has been serving the farming community in and around St. Paul and throughout the Willamette Valley and beyond. Location Address 20179 Main St NE St. Paul, OR 97137 Mailing Address PO Box 480 St. Paul, OR 97137 Products & Services Vineyard Equipment Irrigation Design and Equipment Update Profile