Government in Ilwaco, WA Ilwaco City Public Works SuperintendentPO Box 548Ilwaco, WA, 986243602443683Government Offices Ilwaco Sewer Billing120 1st Ave NIlwaco, WA, 986243606423145Fire DepartmentFire DepartmentsFire Hall RentalsGovernment Offices Show MoreSee AlsoGovernment Offices