Post offices in the county of Boone, IL

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 Belvidere Post Office in Belvidere, IL

Belvidere 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
1800 Doc Wolf Dr Belvidere , IL 61008-1801

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

Caledonia 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
2201 Il Route 173 Caledonia , IL 61011-9796

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Open hours
Day Open Close
Monday 12:15 PM 4:15 PM
Tuesday 12:15 PM 4:15 PM
Wednesday 12:15 PM 4:15 PM
Thursday 12:15 PM 4:15 PM
Friday 12:15 PM 4:15 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 Capron Post Office in Capron, IL

Capron 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
120 W Main St Capron , IL 61012-9783

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Open hours
Day Open Close
Monday 8:00 AM 11:30 AM
12:30 PM 3:00 PM
Tuesday 8:00 AM 11:30 AM
12:30 PM 3:00 PM
Wednesday 8:00 AM 11:30 AM
12:30 PM 3:00 PM
Thursday 8:00 AM 11:30 AM
12:30 PM 3:00 PM
Friday 8:00 AM 11:30 AM
12:30 PM 3:00 PM
Saturday 8:30 AM 9:30 AM
Sunday Closed

Phone: 815-569-2100

  • Stamps.com logo
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Street View Image of Garden Prairie Post Office in Garden Prairie, IL

Garden Prairie 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
6820 Pleasant St Garden Prairie , IL 61038-9998

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Open hours
Day Open Close
Monday 7:00 AM 11:00 AM
Tuesday 7:00 AM 11:00 AM
Wednesday 7:00 AM 11:00 AM
Thursday 7:00 AM 11:00 AM
Friday 7:00 AM 11:00 AM
Saturday 9:00 AM 12:15 PM
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 Poplar Grove Post Office in Poplar Grove, IL

Poplar Grove 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
105 E Britnie Dr Poplar Grove , IL 61065-8325

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Open hours
Day Open Close
Monday 10:30 AM 1:30 PM
2:00 PM 5:00 PM
Tuesday 10:30 AM 1:30 PM
2:00 PM 5:00 PM
Wednesday 10:30 AM 1:30 PM
2:00 PM 5:00 PM
Thursday 10:30 AM 1:30 PM
2:00 PM 5:00 PM
Friday 10:30 AM 1:30 PM
2:00 PM 5:00 PM
Saturday 9:00 AM 1:00 PM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value