Address, Phone Number, and Business Hours for Lynnwood Post Office. Name Lynnwood Post Office Address 6817 208th Street Southwest Lynnwood , Washington , 98036 Phone 425-778-3447 Hours. Name Lynnwood Post Office Suggest Edit Address 6817 208th Street Southwest Lynnwood , Washington , 98036 Phone 425-778-3447 Hours Monday 08:30 AM - 05:00 PM, Tuesday 08:30 AM - 05:00 PM, Wednesday 08:30 AM - 05:00 PM, Thursday 08:30 AM - 05:00 PM, Friday 08:30 AM - 05:00 PM, Saturday 09:00 AM - 01:00 PM, Sunday Closed.