Post offices in the county of Lake, SD

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 Chester Post Office in Chester, SD

Chester 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
410 4th St Chester , SD 57016-9998

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Open hours
Day Open Close
Monday 12:30 PM 4:30 PM
Tuesday 12:30 PM 4:30 PM
Wednesday 12:30 PM 4:30 PM
Thursday 12:30 PM 4:30 PM
Friday 12:30 PM 4:30 PM
Saturday 12:30 PM 2:30 PM
Sunday Closed
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Street View Image of Madison Post Office in Madison, SD

Madison 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
119 E Center St Madison , SD 57042-9998

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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 9:00 AM 11:00 AM
Sunday Closed
  • Stamps.com logo
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Street View Image of Nunda Post Office in Nunda, SD

Nunda 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
409 Main St Nunda , SD 57050-9998

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Open hours
Day Open Close
Monday 12:30 PM 2:30 PM
Tuesday 12:30 PM 2:30 PM
Wednesday 12:30 PM 2:30 PM
Thursday 12:30 PM 2:30 PM
Friday 12:30 PM 2:30 PM
Saturday 12:30 PM 2:30 PM
Sunday Closed
  • Stamps.com logo
    Buy postage online
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Street View Image of Ramona Post Office in Ramona, SD

Ramona 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
217 E Main St Ramona , SD 57054-9998

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Open hours
Day Open Close
Monday 7:45 AM 11:45 AM
Tuesday 7:45 AM 11:45 AM
Wednesday 7:45 AM 11:45 AM
Thursday 7:45 AM 11:45 AM
Friday 7:45 AM 11:45 AM
Saturday 7:45 AM 9:45 AM
Sunday Closed
  • Stamps.com logo
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Street View Image of Wentworth Post Office in Wentworth, SD

Wentworth 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
107 S Main Ave Wentworth , SD 57075-9998

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Open hours
Day Open Close
Monday 7:45 AM 11:45 AM
Tuesday 7:45 AM 11:45 AM
Wednesday 7:45 AM 11:45 AM
Thursday 7:45 AM 11:45 AM
Friday 7:45 AM 11:45 AM
Saturday 7:45 AM 9:45 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
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Street View Image of Winfred Post Office in Winfred, SD

Winfred 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
352 Main St Winfred , SD 57076-9998

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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 11:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value