Post offices in the county of Trinity, CA

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 Big Bar Post Office in Big Bar, CA

Big Bar 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
27761 State Highway 299 Big Bar , CA 96010-9400

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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 Closed
Sunday Closed

Phone: 530-623-6697

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Street View Image of Burnt Ranch Post Office in Burnt Ranch, CA

Burnt Ranch 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
10271c Highway 299 Burnt Ranch , CA 95527-9508

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Open hours
Day Open Close
Monday 8:30 AM 12:30 PM
Tuesday 8:30 AM 12:30 PM
Wednesday 8:30 AM 12:30 PM
Thursday 8:30 AM 12:30 PM
Friday 8:30 AM 12:30 PM
Saturday Closed
Sunday Closed

Phone: 530-629-2847

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Street View Image of Douglas City Post Office in Douglas City, CA

Douglas City 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
140 Steiner Flat Rd Douglas City , CA 96024-9998

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Open hours
Day Open Close
Monday 8:30 AM 12:30 PM
1:00 PM 3:00 PM
Tuesday 8:30 AM 12:30 PM
1:00 PM 3:00 PM
Wednesday 8:30 AM 12:30 PM
1:00 PM 3:00 PM
Thursday 8:30 AM 12:30 PM
1:00 PM 3:00 PM
Friday 8:30 AM 12:30 PM
1:00 PM 3:00 PM
Saturday Closed
Sunday Closed

Phone: 530-623-5149

  • Stamps.com logo
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Street View Image of Hayfork Post Office in Hayfork, CA

Hayfork 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
7180 State Highway 3 Hayfork , CA 96041-9997

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Open hours
Day Open Close
Monday 8:30 AM 4:30 PM
Tuesday 8:30 AM 4:30 PM
Wednesday 8:30 AM 4:30 PM
Thursday 8:30 AM 4:30 PM
Friday 8:30 AM 4:30 PM
Saturday Closed
Sunday Closed

Phone: 530-628-5515

  • Stamps.com logo
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Street View Image of Hyampom Post Office in Hyampom, CA

Hyampom 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
22617 Hyampom Rd Hyampom , CA 96046-9998

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

Phone: 530-628-5955

  • Stamps.com logo
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Street View Image of Junction City Post Office in Junction City, CA

Junction City 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
43380a State Highway 299 Junction City , CA 96048-9998

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Open hours
Day Open Close
Monday 8:00 AM 1:00 PM
1:30 PM 2:30 PM
Tuesday 8:00 AM 1:00 PM
1:30 PM 2:30 PM
Wednesday 8:00 AM 1:00 PM
1:30 PM 2:30 PM
Thursday 8:00 AM 1:00 PM
1:30 PM 2:30 PM
Friday 8:00 AM 1:00 PM
1:30 PM 2:30 PM
Saturday Closed
Sunday Closed

Phone: 530-623-5254

  • Stamps.com logo
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Street View Image of Lewiston Post Office in Lewiston, CA

Lewiston 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
4391a Trinity Dam Blvd Lewiston , CA 96052-9998

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Open hours
Day Open Close
Monday 8:00 AM 12:30 PM
1:00 PM 4:00 PM
Tuesday 8:00 AM 12:30 PM
1:00 PM 4:00 PM
Wednesday 8:00 AM 12:30 PM
1:00 PM 4:00 PM
Thursday 8:00 AM 12:30 PM
1:00 PM 4:00 PM
Friday 8:00 AM 12:30 PM
1:00 PM 4:00 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
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Street View Image of Mad River Post Office in Mad River, CA

Mad River 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
2515b State Highway 36 Mad River , CA 95552-9321

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Open hours
Day Open Close
Monday 9:30 AM 2:00 PM
2:30 PM 4:00 PM
Tuesday 9:30 AM 2:00 PM
2:30 PM 4:00 PM
Wednesday 9:30 AM 2:00 PM
2:30 PM 4:00 PM
Thursday 9:30 AM 2:00 PM
2:30 PM 4:00 PM
Friday 9:30 AM 2:00 PM
2:30 PM 4:00 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 Platina Post Office in Platina, CA

Platina 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
4554 State Highway 36 W Platina , CA 96076-9998

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Open hours
Day Open Close
Monday 9:30 AM 11:30 AM
12:00 PM 4:00 PM
Tuesday 9:30 AM 11:30 AM
12:00 PM 4:00 PM
Wednesday 9:30 AM 11:30 AM
12:00 PM 4:00 PM
Thursday 9:30 AM 11:30 AM
12:00 PM 4:00 PM
Friday 9:30 AM 11:30 AM
12:00 PM 4:00 PM
Saturday Closed
Sunday Closed

Phone: 530-352-4555

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

Salyer 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
1080 Highway 299 Salyer , CA 95563-8701

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Open hours
Day Open Close
Monday 1:00 PM 5:00 PM
Tuesday 1:00 PM 5:00 PM
Wednesday 1:00 PM 5:00 PM
Thursday 1:00 PM 5:00 PM
Friday 1:00 PM 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 Trinity Center Post Office in Trinity Center, CA

Trinity Center 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
271 Mary Ave Trinity Center , CA 96091-9998

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Open hours
Day Open Close
Monday 7:30 AM 3:30 PM
Tuesday 7:30 AM 3:30 PM
Wednesday 7:30 AM 3:30 PM
Thursday 7:30 AM 3:30 PM
Friday 7:30 AM 3:30 PM
Saturday Closed
Sunday Closed

Phone: 530-266-3455

  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
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Street View Image of Weaverville Post Office in Weaverville, CA

Weaverville 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
50 S Miner St Weaverville , CA 96093-9998

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Open hours
Day Open Close
Monday 8:00 AM 4:00 PM
Tuesday 8:00 AM 4:00 PM
Wednesday 8:00 AM 4:00 PM
Thursday 8:00 AM 4:00 PM
Friday 8:00 AM 4:00 PM
Saturday 8:00 AM 10:00 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
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    $100 value
Street View Image of Zenia Post Office in Zenia, CA

Zenia 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
26531 Ruth Zenia Rd Zenia , CA 95595-9998

Get directions

Open hours
Day Open Close
Monday 10:00 AM 12:00 PM
Tuesday 10:00 AM 12:00 PM
Wednesday 10:00 AM 12:00 PM
Thursday 10:00 AM 12:00 PM
Friday 10:00 AM 12:00 PM
Saturday 10:00 AM 12:00 PM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value