United States Postal Service | United States Postal Service
506 W. 25th Street, Yankton, SD 57078
Eligibility
Open to all
Hours
Retail hours: 8:30am - 5:00pm (CT), Monday - Friday
9:30am - 12:00noon (CT), Saturday
Passport hours (call or schedule online) : 9:00am - 3:00pm (CT), Monday - Friday
10:00am - 12:00noon (CT), Saturday
Passport Walk-In:
3:00pm - 4:00pm (CT), Tuesday - Thursday
800-275-8777
Voice
Website
https://www.usps.comApplication process
Call for information
Fees
Vary; Call for information
Service area
SD
Other Information
Age Group
- Older Adults (65+)
- Young Adults (18-24)
- Adults (25-64)
- Children (0-17)
Providing frequent, reliable, safe and secure delivery of mail, packages and other communications to all Americans.
The U.S. Postal Service also operates and staffs local post offices for community mailing needs and support for other government services, including passport applications at some locations.
Find other offices and services by visiting the website and checking specific Zip codes in the Quick Tools "Find USPS Locations" guide.
Last Assured
04/28/2026
Providing organization
United States Postal Service
The Postal Service provides mail processing and delivery services to individuals and businesses in the United States.