United States Postal Service

Post Offices

(605) 436-6243

200 Pine St Seneca, SD 57473

www.usps.com

United States Postal Service serves Seneca, SD and is located in the 57473 ZIP code.

Hours of Operation

Mon 8:30 AM to 12:00 PM
Sat 1:15 PM to 4:30 PM
Sun 8:30 AM to 10:45 AM

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