Union County, South Dakota
Union County, South Dakota, has 7 towns and 4 ZIP codes, in area code 605.
Towns in Union County, A to Z
| Town | ZIP codes | Area codes |
|---|---|---|
| Alcester | 57001 | 605 |
| Dakota Dunes | nearest57049 | 605 |
| Elk Point | 57025 | 605 |
| Jefferson | 57038 | 605 |
| North Sioux | nearest57049 | 605 |
| North Sioux City | 57049 | 605 |
| Richland | nearest57025 | 605 |
ZIP codes in Union County
- 57001Alcester605
- 57025Elk Point605
- 57038Jefferson605
- 57049North Sioux City605
Area code in Union County
- Area code 605
In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Local numbers in area code 605
Looking for a phone number with a Union County area code? These 605 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (605) 827-8008Volga, SD$69View & buy
- (605) 854-8008De Smet, SD$69View & buy
- (605) 860-3888De Smet, SD$69View & buy
- (605) 865-0777Timber Lake, SD$69View & buy
- (605) 865-0888Timber Lake, SD$69View & buy
- (605) 930-6777Volga, SD$69View & buy
- (605) 968-8008Huron, SD$69View & buy
- (605) 979-7007Sioux City, SD$69View & buy
- (605) 987-8987Canton, SD$69View & buy
- (605) 777-1123Harrisburg, SD$79View & buy
- (605) 777-1210Harrisburg, SD$79View & buy
- (605) 777-1230Harrisburg, SD$79View & buy
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