- This area code is shared by 5 main cities
Aberdeen (SD)
Pierre (SD)
Rapid City (SD)
Sioux Falls (SD)
Watertown (SD)
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South Dakota, located in the Midwestern region of the United States, utilizes three primary area codes: 605, which covers the entire state, along with overlays of 1-605 and some local numbering changes reflecting modern telecommunications demand. Established in 1947, area code 605 was one of the original area codes created under the North American Numbering Plan. It has remained unchanged since its inception, a testament to the state's relatively low population density and stable telecommunication needs.
As of the 2020 Census, South Dakota had a population of approximately 886,000 residents, which is spread across vast rural expanses as well as a few urban centers, such as Sioux Falls and Rapid City. The statewide area code reflects the relatively small size of its population, which influences the allocation and management of telecommunications resources.
In recent years, South Dakota has seen advancements in technology and the proliferation of mobile devices, leading to an increase in demand for phone numbers. However, the state continues to maintain a single area code, which is notable compared to more densely populated states that often require multiple area codes to accommodate their larger populations.
Unique characteristics of telecommunications in South Dakota include the integration of rural telephony technologies and a focus on enhancing service coverage across expansive land areas, which can pose challenges due to the state's geographic diversity. As a result, telecommunications infrastructure developments often emphasize both connectivity and service reliability, addressing the needs of its widely dispersed communities.
Aberdeen (SD)
Pierre (SD)
Rapid City (SD)
Sioux Falls (SD)
Watertown (SD)
| Main Cities in South Dakota |
|---|
Aberdeen (SD) |
Pierre (SD) |
Rapid City (SD) |
Watertown (SD) |
South Dakota has 1 area codes (605). These area codes are split between cities or states, so if you want to call to South Dakota, you need to know exactly where you would like to call.
The first 3 digits to call South Dakota may vary depending on where you want to call to, being one or the other depending on the region or city. Take a look at our listing above to find out which area code you need.
Calling South Dakota from another state in the United States is considered a long-distance call. Here’s how to make the call: First, dial the area code for South Dakota. Each state, and sometimes specific cities within a state, has unique area codes. Then, enter the 7-digit phone number of the person or business you’re trying to reach. If you’re calling from a landline, check with your provider, as long-distance charges may apply. However, most mobile carriers in the U.S. offer nationwide calling without additional fees. Alternatively, you can use VoIP or internet-based calling apps, like Skype, Zoom, or WhatsApp, to bypass traditional long-distance charges. The number you want to reach should look like this: 1-(AreaCode)-111-2222.
When making calls within the United States, dialing +1 depends on several factors. On most modern mobile phones, carriers automatically recognize the country code when calling within the U.S., so dialing +1 is usually not required; you can simply enter the area code followed by the phone number, such as 213-555-1234. If you’re using a landline, dialing 1 (the U.S. country code) before the area code and phone number is often necessary for long-distance calls; for example, calling from one state to another may require dialing 1-213-555-1234. When calling the U.S. from another country, dialing +1 is necessary, so a call from abroad would be formatted as +1-213-555-1234. VoIP and internet-based calling platforms, like Skype and WhatsApp, generally handle country codes automatically, making it unnecessary to dial +1 manually for U.S. numbers.
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