Tri-County Regional Development Council, Williston, ND Instalment Loans Business Loan Personal Loans Car Title Loans Online Loans Williston, ND 113 4th Street Eastsuite 101. ZIP Code: 58801 (701) 577-1358 North Dakota, Williston, Instalment Loans About Tri-County Regional Development Council Opening Hours Monday – Tuesday – Wednesday – Thursday – Friday – Saturday Closed Sunday Closed American State Bank & Trust Co Instalment Loans in Williston, North Dakota US Bank Mortgage Instalment Loans in Williston, North Dakota Tri-County Regional Development Council on the map Show on Google Map