Post offices and parcel points in Castle Rock, WA
ZIP code 986112 locations — 1 post box, 1 post office.
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- Post boxes
- Post offices
Post office in Castle Rock
Cowlitz Street West
- Hours
- Mon–Fri8:30 am–5 pmSat11 am–1 pm
- Phone
- +1-360-274-5209
Post box in Castle Rock
- Box type unconfirmed
- Hours