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