Post offices in Lake Oswego, OR

3 locations. Everything in Lake Oswego.

• Lake Oswego Post Office

  USPS

  501 Fourth Street

  Mon–Fri8:30 am–5 pm
• PostalAnnex

  Postalannex

  P, 3 Monroe Parkway

  Mon–Fri8 am–8 pmSat9 am–6 pm
• The UPS Store

  UPS

  V, 333 South State Street

  Mon–Fri8 am–6 pmSat9 am–5 pmSun10 am–3 pm