605
South Dakota's Only Code Since 1947
The 605 area code has covered all of South Dakota since 1947 and has never split or overlaid. Learn its history, coverage, dialing rules, and how to get a local number.
SD · 1 Area Code
South Dakota
Area Codes
South Dakota's economy leans on financial services and agriculture, centered around Sioux Falls, Rapid City, and Aberdeen. Get a local virtual phone number with any South Dakota area code.
1 area code
Original code 605 · 1947
Capital: Pierre
Carrier-grade network
// Why SD Virtual Numbers
Why businesses choose a South Dakota virtual number
A local South Dakota number shows callers which part of the state you serve.
1947
605 first assigned
605 came first, in 1947
605 was South Dakota's original area code, assigned in 1947. The newest, 605, arrived in 1947. Each of the 1 code below maps to its own part of the state, so the code you pick shows which region you serve.
01 — South Dakota at a Glance
South Dakota, by the numbers.
South Dakota was assigned area code 605 in 1947, one of the original 86 codes, and the entire state has shared it ever since.
Sioux Falls, Rapid City, Aberdeen, and every other town all dial the same code.
Low population density has kept demand modest, so regulators have never needed a split or an overlay.
In 2021, South Dakota moved to mandatory 10-digit dialing — not from a new code, but because some 605 exchanges had used 988 as a prefix before it became the national crisis line.
Did you know?
605 is one of only fifteen of the original 1947 area codes still covering an entire state today, meaning Sioux Falls and the most remote South Dakota ranch share the exact same code.
// 1 area codes
South Dakota Virtual Phone Numbers
Select any area code to get a local virtual number for that region of South Dakota.
// Get Started
Get a South Dakota number in 3 steps
From choosing a code to setting up call routing.
- 01Step 01
Choose a SD area code
Browse the South Dakota area codes above and pick the region that best serves your customers.
- 02Step 02
Select your number
Choose from the numbers available in your selected area code.
- 03Step 03
Set up routing
Configure call routing, business hours, and voicemail from your Rozper dashboard for your South Dakota number.
Frequently Asked
South Dakota number questions answered.
Everything you need to know before getting a South Dakota virtual phone number.
South Dakota has 1 active area code: 605. Rozper offers virtual phone numbers in these codes, which you can browse and choose from one dashboard.
605 is South Dakota's original area code, assigned in 1947. The most recent addition, 605, followed in 1947.
No. Virtual numbers are location-independent. A business based anywhere in the U.S. or internationally can get a South Dakota area code and route calls to any device, team, or call center.
South Dakota's capital is Pierre, and the state keeps Central time (parts of the state use a neighbouring zone). Its population is about 924,000, across 66 counties.
South Dakota's economy centers on financial services and agriculture, with Sioux Falls, Rapid City, and Aberdeen as the main business hubs. South Dakota has no state income tax, which has drawn many banks to Sioux Falls.
Questions about South Dakota numbers? Get in touch.
// Next door
States that border South Dakota
Customers and teams near the South Dakotaline often use a neighbouring state's codes. Here are the area codes next door.
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Pick a South Dakota area code and talk to us about setting up your number.