Area codes in Rapid City, South Dakota
Rapid City, South Dakota uses area code 605. The main Rapid City area code is 605.
Area codes serving Rapid City
Phone numbers in Rapid City are written as ten digits — for example (605) 555-0190 — and fall in the Central & Mountain Time zone.
All South Dakota area codes · Is a Rapid City call a scam?
Nearby cities
- Casper area codes
- Cheyenne area codes
- Bismarck area codes
- Fort Collins area codes
- Greeley area codes
- Loveland area codes
- Billings area codes
- Longmont area codes
More cities in South Dakota
Frequently asked questions
What is the area code for Rapid City?
The main area code for Rapid City, South Dakota is 605.
How many area codes does Rapid City have?
Rapid City has 1 area code: 605.
How do you dial a Rapid City number?
Dial all 10 digits — the area code (605) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.