Keystone, South Dakota
Keystone, South Dakota, in Pennington County, has ZIP code 57751 and area code 605.
- ZIP code
- 57751
- Area code
- 605
- County
- Pennington County
- State
- South Dakota
- Coordinates
- 43.8848, -103.3995
ZIP codes in Keystone
| ZIP code | Post office | County | Area codes |
|---|---|---|---|
| 57751 | Keystone | Pennington County | 605 |
Area code for Keystone
- Area code 605
In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Towns near Keystone
- Hill14.5 km (9.0 mi)
- Hill City15.5 km (9.6 mi)
- Colonial Pine Hills15.9 km (9.9 mi)
- Hermosa17.2 km (11 mi)
- Johnson Siding22.4 km (14 mi)
- Rapid City23 km (14 mi)
- Rapid25.3 km (16 mi)
- Custer25.4 km (16 mi)
Local numbers in area code 605
Looking for a phone number with a Keystone area code? These 605 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (605) 777-1231Harrisburg, SD$79View & buy
- (605) 777-1232Harrisburg, SD$79View & buy
- (605) 777-1233Harrisburg, SD$79View & buy
- (605) 777-1236Harrisburg, SD$79View & buy
- (605) 777-1238Harrisburg, SD$79View & buy
- (605) 777-1239Harrisburg, SD$79View & buy
- (605) 777-1321Harrisburg, SD$79View & buy
- (605) 777-1432Harrisburg, SD$79View & buy
- (605) 777-1456Harrisburg, SD$79View & buy
- (605) 777-1543Harrisburg, SD$79View & buy
- (605) 777-1991Harrisburg, SD$79View & buy
- (605) 888-4562Chamberlain, SDAlso spells GLOB$79View & buy
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