Directions to Marine Credit Union Directions to Marine Credit Union Search | Advanced Search | New Members | Coupons and Discounts | All Categories Business & Professional Services >> Banks and Credit Unions Marine Credit Union 661 W. Pioneer Rd.Fond du Lac, WI 54935 | map 920.923.7280 Visit Site Get directions to: Marine Credit Union, 661 W. Pioneer Rd., Fond du Lac WI Get directions from: Click to Print This Page