Post office locations in Union County, SD

• Alcester

  Post Office	Address	Phone	Hours
  ALCESTER	111 DAKOTA ST ALCESTER, SD 57001 - 9998	605-934-2450	Mon-Fri 9:30am - 12:30pm 1:30pm - 4:00pm Sat 9:30am - 10:00am Sun Closed

• Beresford

  Post Office	Address	Phone	Hours
  BERESFORD	100 S 3RD ST BERESFORD, SD 57004 - 9998	605-763-2862	Mon-Fri 8:00am - 11:00am 12:00pm - 4:00pm Sat 8:30am - 9:30am Sun Closed

• Elk Point

  Post Office	Address	Phone	Hours
  ELK POINT	123 W MAIN ST ELK POINT, SD 57025 - 9998	605-356-2402	Mon-Fri 9:00am - 11:00am 12:00pm - 4:30pm Sat 9:30am - 10:30am Sun Closed

• Jefferson

  Post Office	Address	Phone	Hours
  JEFFERSON	303 MAIN ST JEFFERSON, SD 57038 - 9998	605-966-5504	Mon-Fri 12:30pm - 4:30pm Sat 12:30pm - 1:00pm Sun Closed

• North Sioux City

  Post Office	Address	Phone	Hours
  NORTH SIOUX CITY	310 N DERBY LN NORTH SIOUX CITY, SD 57049 - 9998	605-232-4206	Mon-Fri 9:00am - 4:30pm Sat 10:30am - 11:30am Sun Closed

Find post offices in Union County on PostOfficeFinder.org. Search for Union County postal locations and find addresses, directions, hours and services provided for all Union County post offices.