St. Louis County Administration St. Louis County Administration Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Government - County St. Louis County Administration 100 North 5th Avenue West, #202Duluth, MN 55802 | View on Google Maps Kevin Gray (218) 726-2448 | (218) 726-2450 | fax: (218) 726-2469 Visit Site If your business isn't here, contact us today to get listed!