Post offices in the county of Boulder, CO

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 Allenspark Post Office in Allenspark, CO

Allenspark 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
7 Washington St Allenspark , CO 80510-9997

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Open hours
Day Open Close
Monday 9:30 AM 1:00 PM
1:30 PM 4:00 PM
Tuesday 9:30 AM 1:00 PM
1:30 PM 4:00 PM
Wednesday 9:30 AM 1:00 PM
1:30 PM 4:00 PM
Thursday 9:30 AM 1:00 PM
1:30 PM 4:00 PM
Friday 9:30 AM 1:00 PM
1:30 PM 4:00 PM
Saturday 10:00 AM 1:45 PM
Sunday Closed

Phone: 303-747-2559

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Street View Image of Boulder Post Office in Boulder, CO

Boulder 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
1905 15th St Boulder, CO 80302-9998

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Open hours
Day Open Close
Monday 8:30 AM 5:30 PM
Tuesday 8:30 AM 5:30 PM
Wednesday 8:30 AM 5:30 PM
Thursday 8:30 AM 5:30 PM
Friday 8:30 AM 5:30 PM
Saturday 10:00 AM 2:00 PM
Sunday Closed
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Street View Image of High Mar Post Office in Boulder, CO

High Mar 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
4985 Moorhead Ave Boulder, CO 80305-9998

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Open hours
Day Open Close
Monday 9:00 AM 5:30 PM
Tuesday 9:00 AM 5:30 PM
Wednesday 9:00 AM 5:30 PM
Thursday 9:00 AM 5:30 PM
Friday 9:00 AM 5:30 PM
Saturday 10:00 AM 1:00 PM
Sunday Closed
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Street View Image of Valmont Post Office in Boulder, CO

Valmont 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
2995 55th St Boulder, CO 80301-9998

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Open hours
Day Open Close
Monday 9:00 AM 6:00 PM
Tuesday 9:00 AM 6:00 PM
Wednesday 9:00 AM 6:00 PM
Thursday 9:00 AM 6:00 PM
Friday 9:00 AM 6:00 PM
Saturday 10:00 AM 2:00 PM
Sunday Closed
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Street View Image of Eldorado Springs Post Office in Eldorado Springs, CO

Eldorado Springs 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
3330 Eldorado Springs Dr Eldorado Springs , CO 80025-9900

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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

Phone: 303-494-3752

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Street View Image of Hygiene Post Office in Hygiene, CO

Hygiene 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
11830 N 75th St Hygiene , CO 80533-9997

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Open hours
Day Open Close
Monday 8:00 AM 12:30 PM
1:00 PM 4:30 PM
Tuesday 8:00 AM 12:30 PM
1:00 PM 4:30 PM
Wednesday 8:00 AM 12:30 PM
1:00 PM 4:30 PM
Thursday 8:00 AM 12:30 PM
1:00 PM 4:30 PM
Friday 8:00 AM 12:30 PM
1:00 PM 4:30 PM
Saturday 9:00 AM 12:00 PM
Sunday Closed
  • Stamps.com logo
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Street View Image of Jamestown Post Office in Jamestown, CO

Jamestown 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
133 Main St Jamestown , CO 80455-9997

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Open hours
Day Open Close
Monday 9:00 AM 12:00 PM
12:30 PM 3:30 PM
Tuesday 9:00 AM 12:00 PM
12:30 PM 3:30 PM
Wednesday 9:00 AM 12:00 PM
12:30 PM 3:30 PM
Thursday 9:00 AM 12:00 PM
12:30 PM 3:30 PM
Friday 9:00 AM 12:00 PM
12:30 PM 3:30 PM
Saturday 9:00 AM 11:30 AM
Sunday Closed
  • Stamps.com logo
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Street View Image of Lafayette Post Office in Lafayette, CO

Lafayette 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
603 S Public Rd Lafayette, CO 80026-9998

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Open hours
Day Open Close
Monday 9:00 AM 5:00 PM
Tuesday 9:00 AM 5:00 PM
Wednesday 9:00 AM 5:00 PM
Thursday 9:00 AM 5:00 PM
Friday 9:00 AM 5:00 PM
Saturday 10:00 AM 1:00 PM
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 Lafayette Carrier Annex Post Office in Lafayette, CO

Lafayette Carrier Annex Post Office does not have retail counter services

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

Street View Image of Longmont Post Office in Longmont, CO

Longmont 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
201 Coffman St Longmont , CO 80501-9998

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Open hours
Day Open Close
Monday 9:00 AM 5:30 PM
Tuesday 9:00 AM 5:30 PM
Wednesday 9:00 AM 5:30 PM
Thursday 9:00 AM 5:30 PM
Friday 9:00 AM 5:30 PM
Saturday 9:00 AM 1:00 PM
Sunday Closed
  • Stamps.com logo
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    Discounted USPS and UPS rates of up to 84%.
    Promo code
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Street View Image of Louisville Post Office in Louisville, CO

Louisville 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
566 S Mccaslin Blvd Louisville , CO 80027-9998

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Open hours
Day Open Close
Monday 9:00 AM 5:30 PM
Tuesday 9:00 AM 5:30 PM
Wednesday 9:00 AM 5:30 PM
Thursday 9:00 AM 5:30 PM
Friday 9:00 AM 5:30 PM
Saturday 9:00 AM 12:00 PM
Sunday Closed
  • Stamps.com logo
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    Discounted USPS and UPS rates of up to 84%.
    Promo code
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Street View Image of Lyons Post Office in Lyons, CO

Lyons 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
305 Railroad Ave Lyons , CO 80540-9997

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Open hours
Day Open Close
Monday 7:30 AM 4:30 PM
Tuesday 7:30 AM 4:30 PM
Wednesday 7:30 AM 4:30 PM
Thursday 7:30 AM 4:30 PM
Friday 7:30 AM 4:30 PM
Saturday 8:00 AM 11:30 AM
Sunday Closed
  • Stamps.com logo
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Street View Image of Nederland Post Office in Nederland, CO

Nederland 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
350 East St Nederland , CO 80466-9908

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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 9:00 AM 12:00 PM
Sunday Closed
  • 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 Niwot Post Office in Niwot, CO

Niwot 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
150 Murray St Niwot , CO 80544-9997

Get directions

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 8:30 AM 11:30 AM
Sunday Closed

Phone: 303-652-2309

  • 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 Pinecliffe Post Office in Pinecliffe, CO

Pinecliffe 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
114 Pinecliff Rd Pinecliffe , CO 80471-9997

Get directions

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 7:00 AM 12:30 PM
1:00 PM 3:30 PM
Sunday Closed

Phone: 303-642-7358

  • 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 Ward Post Office in Ward, CO

Ward 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
1 Columbia St Ward , CO 80481-9900

Get directions

Open hours
Day Open Close
Monday 11:30 AM 3:30 PM
Tuesday 11:30 AM 3:30 PM
Wednesday 11:30 AM 3:30 PM
Thursday 11:30 AM 3:30 PM
Friday 11:30 AM 3:30 PM
Saturday 12:00 PM 2:00 PM
Sunday Closed

Phone: 303-459-0255

  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value