This office doesn’t have any official markings that it services Brinnon but it is a newer post office with lots of parking. It’s just off the main road in Brinnon and there are signs pointing to which way you have to go to get there. It’s much higher off the ground than most post offices. There is a huge concrete foundation and it’s at least like 8 – 10 ft up in the air because of this. The do have a drive through mail drop off which is convenient if you’re not wanting to go inside and strangely there are a lot of post office boxes in the lobby even though Brinnon seems so small. There was only one person working the counter when I went, which wasn’t a problem because of course it was not busy… ATALL.