Post offices in the county of Cowlitz, WA

Use this page to find the post offices in your county that open earliest or stay open latest. The open hours listed are for the post office's retail hours, which means the hours in which a postal service employee is available at the counter to help with mailings and other services. Oftentimes lobbies are open extended hours, and you are able to check your PO box, drop off packages, or use the self-service APC machine to buy postage. The list below is first sorted alphabetically by city, then by post office name. Street View photos of post offices are shown when available. Please contact us if you find an error, so that we can correct it.

Street View Image of Ariel Post Office in Ariel, WA

Ariel Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
5712 Lewis River Rd Ariel , WA 98603-9754

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Open hours
Day Open Close
Monday 11:30 AM 1:30 PM
Tuesday 11:30 AM 1:30 PM
Wednesday 11:30 AM 1:30 PM
Thursday 11:30 AM 1:30 PM
Friday 11:30 AM 1:30 PM
Saturday Closed
Sunday Closed

Phone: 360-225-8703

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Street View Image of Carrolls Post Office in Carrolls, WA

Carrolls Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
3803 Old Pacific Hwy S Carrolls , WA 98609-9598

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Open hours
Day Open Close
Monday 10:00 AM 12:00 PM
12:30 PM 2:30 PM
Tuesday 10:00 AM 12:00 PM
12:30 PM 2:30 PM
Wednesday 10:00 AM 12:00 PM
12:30 PM 2:30 PM
Thursday 10:00 AM 12:00 PM
12:30 PM 2:30 PM
Friday 10:00 AM 12:00 PM
12:30 PM 2:30 PM
Saturday Closed
Sunday Closed

Phone: 360-577-0525

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Street View Image of Castle Rock Post Office in Castle Rock, WA

Castle Rock Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
126 Cowlitz St W Castle Rock , WA 98611-8998

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Open hours
Day Open Close
Monday 8:30 AM 5:00 PM
Tuesday 8:30 AM 5:00 PM
Wednesday 8:30 AM 5:00 PM
Thursday 8:30 AM 5:00 PM
Friday 8:30 AM 5:00 PM
Saturday 11:00 AM 1:00 PM
Sunday Closed
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Street View Image of Cougar Post Office in Cougar, WA

Cougar Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
16745 Lewis River Rd Cougar , WA 98616-9707

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Open hours
Day Open Close
Monday 11:00 AM 3:00 PM
Tuesday 11:00 AM 3:00 PM
Wednesday 11:00 AM 3:00 PM
Thursday 11:00 AM 3:00 PM
Friday 11:00 AM 3:00 PM
Saturday Closed
Sunday Closed

Phone: 360-238-5324

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Street View Image of Kalama Post Office in Kalama, WA

Kalama Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
454 N 1st St Kalama , WA 98625-9198

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Open hours
Day Open Close
Monday 8:30 AM 5:00 PM
Tuesday 8:30 AM 5:00 PM
Wednesday 8:30 AM 5:00 PM
Thursday 8:30 AM 5:00 PM
Friday 8:30 AM 5:00 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
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Street View Image of Kelso Post Office in Kelso, WA

Kelso Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
304 Academy St Kelso , WA 98626-4101

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Open hours
Day Open Close
Monday 8:30 AM 5:00 PM
Tuesday 8:30 AM 5:00 PM
Wednesday 8:30 AM 5:00 PM
Thursday 8:30 AM 5:00 PM
Friday 8:30 AM 5:00 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
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Street View Image of Longview Post Office in Longview, WA

Longview Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
1603 Larch St Longview , WA 98632-2900

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Open hours
Day Open Close
Monday 8:30 AM 5:00 PM
Tuesday 8:30 AM 5:00 PM
Wednesday 8:30 AM 5:00 PM
Thursday 8:30 AM 5:00 PM
Friday 8:30 AM 5:00 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
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    Discounted USPS and UPS rates of up to 84%.
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Street View Image of Ryderwood Post Office in Ryderwood, WA

Ryderwood Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
210 Morse St Ryderwood , WA 98581-9998

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Open hours
Day Open Close
Monday 9:00 AM 1:00 PM
Tuesday 9:00 AM 1:00 PM
Wednesday 9:00 AM 1:00 PM
Thursday 9:00 AM 1:00 PM
Friday 9:00 AM 1:00 PM
Saturday 9:45 AM 10:45 AM
Sunday Closed
  • Stamps.com logo
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Street View Image of Toutle Post Office in Toutle, WA

Toutle Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
5208 Spirit Lake Hwy Toutle , WA 98649-9891

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Open hours
Day Open Close
Monday 10:00 AM 4:00 PM
Tuesday 10:00 AM 4:00 PM
Wednesday 10:00 AM 4:00 PM
Thursday 10:00 AM 4:00 PM
Friday 10:00 AM 4:00 PM
Saturday Closed
Sunday Closed

Phone: 360-274-6179

  • Stamps.com logo
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    Discounted USPS and UPS rates of up to 84%.
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Street View Image of Woodland Post Office in Woodland, WA

Woodland Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
190 Bozarth Ave Woodland , WA 98674-8416

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Open hours
Day Open Close
Monday 8:30 AM 5:00 PM
Tuesday 8:30 AM 5:00 PM
Wednesday 8:30 AM 5:00 PM
Thursday 8:30 AM 5:00 PM
Friday 8:30 AM 5:00 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value