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Area Code 605 Location & Details

State / Region: South Dakota • Country: United States

Major Cities Covered: Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, Yankton, Mitchell, Huron, Spearfish, Box Elder

Standard Dial Format
+1 (605) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 605?
South DakotaState Hub →
Country Territory
United States
605 Area Code Time Zone
Central / Mountain
605 Overlay Codes
No Overlays

Area Code 605 Geographic Map

Interactive location bounds and coverage area for South Dakota (Central / Mountain Timezone)

Lat: 43.98° • Lng: -98.79°
📍 Geographic Center: South DakotaMap data © OpenStreetMap contributors

Where is Area Code 605 Located?

Telephone area code 605 is assigned to South Dakota in United States. It serves cities and metropolitan communities including Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, Yankton, Mitchell, Huron, Spearfish, Box Elder.

Historical Context & Area Code Overlay Information:605 serves South Dakota (United States).

For local and long-distance calls within area code 605, standard 10-digit dialing (605) XXX-XXXX applies.

Who Called Me from Area Code 605?

Received an unknown call, missed call, or text scam from area code 605? Here is how to trace who is calling from 605 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 605 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 605:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 605 & Dialing Format

When placing a phone call to a number in area code 605, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (605) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 605 + 7-digit number.
  • Do I need to dial area code 605 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 605

Urban centers, census places, and communities within the +1-605 calling area

50 Major Cities Listed
City NameCountyPopulation% of 605 Pop
Sioux FallsMinnehaha County213,74836.1%
Rapid CityPennington County80,58913.6%
AberdeenBrown County27,9614.7%
BrookingsBrookings County25,3554.3%
WatertownCodington County23,7364.0%
YanktonYankton County15,8162.7%
MitchellDavison County15,7562.7%
HuronBeadle County14,6072.5%
SpearfishLawrence County14,1542.4%
Box ElderPennington County13,9362.4%
PierreHughes County13,8482.3%
VermillionClay County11,7202.0%
BrandonMinnehaha County11,3061.9%
HarrisburgLincoln County10,4051.8%
TeaLincoln County8,0191.4%
SturgisLawrence County6,9221.2%
MadisonLake County6,0651.0%
Belle FourcheLawrence County5,7911.0%
Dell RapidsMinnehaha County3,8520.6%
Hot SpringsFall River County3,6700.6%

Counties Covered by Area Code 605

Geographic county distribution and population coverage across South Dakota

County NameTotal Population% of 605 Area% of County
Minnehaha County209,41639.7%100%
Pennington County116,31215.9%81%
Lawrence County28,7095.8%100%
Brown County37,6214.9%78%
Brookings County36,8144.7%76%
Lincoln County75,1234.4%35%
Codington County29,2704.0%81%
Yankton County23,5772.7%67%
Davison County19,9902.7%79%
Beadle County19,5222.5%75%
Hughes County17,5572.3%79%
Clay County15,1902.0%77%
Lake County11,0441.0%55%
Union County17,3730.9%29%
Fall River County7,4130.6%50%
Grant County7,6130.6%46%
Walworth County5,2440.5%61%
Tripp County5,7380.5%52%
Brule County5,2970.4%46%
Roberts County10,2780.4%23%
Moody County6,5990.4%36%
Stanley County3,0010.4%72%
Spink County6,1540.4%34%
Turner County9,2370.4%29%
Bon Homme County7,1510.3%27%
Custer County9,3240.3%19%
Day County5,4470.3%31%
Hutchinson County7,4010.3%21%
Douglas County2,8680.2%50%
McCook County5,8810.2%23%
Hand County3,1180.2%42%

☎️Area Code 605 Exchange Prefixes & Carriers

Showing 50 of 759 central office 3-digit prefixes and assigned telecom carriers

70% Landline25% Wireless5% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(605) 200-📱WirelessDUPREENEW CINGULAR WIRELESS PCS, LLC - IL01/21/2003
(605) 201-📱WirelessSIOUX FLSNEW CINGULAR WIRELESS PCS, LLC - ILN/A
(605) 202-📱WirelessVERMILLIONNEW CINGULAR WIRELESS PCS, LLC - IL09/23/2002
(605) 203-📱WirelessLK PRESTONNEW CINGULAR WIRELESS PCS, LLC - IL09/23/2002
(605) 204-📱WirelessMILLERNEW CINGULAR WIRELESS PCS, LLC - IL09/23/2002
(605) 205-📱WirelessELK POINTNEW CINGULAR WIRELESS PCS, LLC - IL03/18/2003
(605) 206-📱WirelessSTURGISNEW CINGULAR WIRELESS PCS, LLC - IL03/18/2003
(605) 207-📱WirelessPLATTENEW CINGULAR WIRELESS PCS, LLC - IL02/14/2001
(605) 208-📱WirelessWINNERNEW CINGULAR WIRELESS PCS, LLC - IL05/13/2003
(605) 209-📱WirelessRAPID CITYNEW CINGULAR WIRELESS PCS, LLC - ILN/A
(605) 210-📱WirelessBELLEFORCHNEW CINGULAR WIRELESS PCS, LLC - ILN/A
(605) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(605) 212-📱WirelessSIOUX FLSCELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD11/06/2003
(605) 213-📞LandlineHARISBGTEAMIDCONTINENT COMMUNICATIONS. - SD11/07/2003
(605) 214-📱WirelessHARISBGTEACELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD03/18/2004
(605) 215-📞LandlineSIOUX FLSAERIAL COMMUNICATIONS, INC.12/19/2009
(605) 216-📱WirelessABERDEENNEW CINGULAR WIRELESS PCS, LLC - ILN/A
(605) 217-📞LandlineNOSIOUX CYIMON COMMUNICATIONS LLCN/A
(605) 218-📱WirelessEAGLEBUTTECELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD07/17/2013
(605) 219-📱WirelessRAPID CITYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD11/12/2014
(605) 220-📱WirelessPIERRECELLCO PARTNERSHIP DBA VERIZON WIRELESS - SDN/A
(605) 221-📞LandlineSIOUX FLSPAETEC ITEL, LLC03/16/2001
(605) 222-📱WirelessPIERRECELLCO PARTNERSHIP DBA VERIZON WIRELESS - SDN/A
(605) 223-📞LandlinePIERREQWEST CORPORATIONN/A
(605) 224-📞LandlinePIERREQWEST CORPORATIONN/A
(605) 225-📞LandlineABERDEENQWEST CORPORATIONN/A
(605) 226-📞LandlineABERDEENQWEST CORPORATIONN/A
(605) 227-📞LandlineETHANSANTEL COMMUNICATIONS COOPERATIVE, INC. - SDN/A
(605) 228-📱WirelessABERDEENCELLCO PARTNERSHIP DBA VERIZON WIRELESS - SDN/A
(605) 229-📞LandlineABERDEENQWEST CORPORATIONN/A
(605) 230-📱WirelessMOBRIDGENEW CINGULAR WIRELESS PCS, LLC - IL01/21/2003
(605) 231-📞LandlineSIOUX FLSAERIAL COMMUNICATIONS, INC.N/A
(605) 232-📞LandlineNOSIOUX CYQWEST CORPORATIONN/A
(605) 233-📱WirelessCLARKNEW CINGULAR WIRELESS PCS, LLC - IL08/07/2003
(605) 234-📞LandlineCHAMBERLANMIDSTATE TELECOM, INC. - SD10/17/2001
(605) 235-📞LandlineNOSIOUX CYQWEST CORPORATIONN/A
(605) 236-📞LandlineMT VERNONSANTEL COMMUNICATIONS COOPERATIVE, INC. - SDN/A
(605) 237-📱WirelessWATERTOWNCELLCO PARTNERSHIP DBA VERIZON WIRELESS - SDN/A
(605) 238-📞LandlineHURLEYCLARITY TELECOM, LLC DBA BLUEPEAKN/A
(605) 239-📞LandlineALEXANDRIATRIOTEL COMMUNICATIONS, INC.N/A
(605) 240-📱WirelessSALEMNEW CINGULAR WIRELESS PCS, LLC - IL10/07/2004
(605) 241-📞LandlineSIOUX FLSSOUTH DAKOTA NETWORK, LLCN/A
(605) 242-📞LandlineNOSIOUX CYLONG LINES METRO, LLC - SDN/A
(605) 243-📞LandlineNEWHOLLANDMIDSTATE COMMUNICATIONS, INC.N/A
(605) 244-📞LandlineBISONWEST RIVER COOPERATIVE TELEPHONE COMPANYN/A
(605) 245-📞LandlineFTTHOMPSONMIDSTATE COMMUNICATIONS, INC.N/A
(605) 246-📞LandlineSPENCERTRIOTEL COMMUNICATIONS, INC.N/A
(605) 247-📞LandlineCENTERTRIOTEL COMMUNICATIONS, INC.N/A
(605) 248-📞LandlineLETCHERSANTEL COMMUNICATIONS COOPERATIVE, INC. - SDN/A
(605) 249-📞LandlineWHITE LAKEMIDSTATE COMMUNICATIONS, INC.N/A

Frequently Asked Questions about Area Code 605

Where is area code 605 located?

Area code 605 is located in South Dakota (United States), serving cities like Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, Yankton, Mitchell, Huron, Spearfish, Box Elder.

What timezone is area code 605?

Area code 605 operates in the Central / Mountain timezone.

What state is area code 605?

Area code 605 is assigned to the state / telecom territory of South Dakota.

Is area code 605 a scam or dangerous?

Area code 605 is an official geographic area code for South Dakota. However, beware of robocaller spoofing.

South Dakota State Area Codes

View complete directory of telephone area codes assigned to South Dakota.

Explore South Dakota Directory

Get a 605 Business Phone Number

How to acquire a virtual phone number or business line with area code 605 for local customer trust in South Dakota.

Get 605 Business Number
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