North American Area code 605 is the telephone area code serving the entire state of South Dakota, and is one of the area codes that was created in 1947. It is also one of a gradually decreasing number of single-state, single LATA, single area code areas. (North Dakota uses only the Area code 701, but is split into two LATAs, one of which includes Minnesota.)
Communities included
- Aberdeen: 216, 225, 226, 228, 229, 252, 262, 277, 290, 377, 380, 622, 626, 715, 725, 824, 846
- Alcester: 934
- Alexandria: 239
- Alpena: 849
- Andover: 298
- Arlington: 315, 983
- Armour: 572, 724,
- Artesian: 527
- Astoria: 832
- Avon: 286
- Baltic: 529
- Belle Fourche: 210, 568, 569, 699, 723, 892
- Belvidere: 344
- Beresford: 300, 751, 763, 957
- Big Stone City: 541, 862
- Bison: 244
- Blunt: 962
- Bonesteel: 654
- Bowdle: 281, 282, 285
- Bradley: 784
- Brandon: 582, 839
- Brandt: 876
- Bridgewater: 729
- Bristol: 492
- Britton: 448, 470, 551
- Brookings: 560, 592, 651, 688, 690, 691, 692, 693, 695, 697
- Buffalo: 375
- Buffalo Gap: 833
- Burke: 775
- Camp Crook: 797
- Canistota: 296
- Canova: 523
- Canton: 558, 764, 836, 987
- Castlewood: 414, 793, 804
- Cavour: 599
- Center: 247
- Centerville: 552, 563
- Chamberlain: 234, 730, 734, 815, 888
- Claire City: 652
- Claremont: 294
- Clark: 233, 532, 844
- Clear Lake: 874
- Colton: 446, 671
- Columbia: 396
- Conde: 382
- Corsica: 946
- Cresbard: 324
- Crooks: 465, 543
- Custer: 440, 517, 673
- Dell Rapids: 428, 963
- Delmont: 779
- De Smet: 854, 860, 861
- Doland: 635
- Dupree: 200, 365, 538, 821
- Eagle Butte: 218, 964
- Edgemont: 662
- Elk Point: 205, 356, 761, 952
- Elkton: 542, 922
- Emery: 449
- Estelline: 686, 873
- Ethan: 227
- Eureka: 284
- Faith: 739, 967
- Faulkton: 598
- Flandreau: 530, 534, 573, 633, 684, 864, 997
- Florence: 758
- Fort Pierre: 220, 222, 223, 224, 280, 295, 301, 494, 609, 773, 776, 945
- Frederick: 329
- Freeman: 925
- Garretson: 594
- Gary: 272
- Gettysburg: 765, 769, 771
- Glenham: 762, 848, 850
- Goodwin: 795
- Gregory: 830, 831, 835
- Groton: 397
- Harrisburg: 213, 214, 368, 408, 498, 667, 743, 767, 777
- Harrold: 875
- Hartford: 528, 953
- Hayti: 783, 792
- Hecla: 994
- Hermosa: 255
- Herreid: 437
- Highmore: 478, 852, 870, 871
- Hill City: 307, 574
- Hitchcock: 266
- Hosmer: 283
- Hot Springs: 745, 890, 891
- Hoven: 948
- Howard: 579, 772, 851
- Hudson: 984
- Humboldt: 363
- Hurley: 238
- Huron: 350, 352, 353, 354, 412, 461, 554, 570, 931, 936, 960, 968
- Interior: 433
- Ipswich: 410, 426
- Irene: 263
- Iroquois: 546
- Isabel: 466
- Jefferson: 966
- Kadoka: 488, 837
- Kennebec: 869
- Keystone: 666
- Kimball: 680, 682, 778
- Lake Andes: 469, 481, 487, 491
- Lake Norden: 710, 785
- Langford: 493
- Lebanon: 768
- Lemmon: 374
- Lennox: 647, 744, 750
- Leola: 439
- Lesterville: 364,
- Letcher: 248
- Long Lake: 577
- McIntosh: 273, 524
- McLaughlin: 314
- Madison: 256, 270, 291, 427, 480, 556, 636
- Marion: 648
- Martin: 407, 441, 454, 685, 899, 944, 970, 980
- Mellette: 887
- Menno: 387
- Midland: 843
- Milbank: 432, 434, 438, 445, 467, 924, 949
- Miller: 204, 453, 853, 893
- Mission: 319, 828, 856
- Mitchell: 292, 299, 550, 597, 630, 656, 770, 933, 990, 995, 996, 999
- Mobridge: 230, 823, 845, 926
- Mound City: 955
- Mount Vernon: 236
- Murdo: 516, 669
- New Effington: 637
- New Holland: 243
- Newell: 456
- New Underwood: 754
- Nisland: 257
- North Cody: 822
- North Naper: 834
- North Sioux City: 217, 232, 235, 242, 422, 540, 585, 780, 979
- Nunda: 586
- Oelrichs: 535
- Oldham: 482
- Onaka: 447
- Onida: 973
- Orient: 392
- Parker: 297
- Parkston: 505, 928
- Peever: 932
- Philip: 859
- Pierpont: 325
- Pierre: 220, 222, 223, 224, 280, 295, 301, 494, 609, 773, 776, 945
- Plankinton: 942
- Platte: 207, 337, 613
- Pollock: 889
- Presho: 895
- Pukwana: 894
- Quinn: 386
- Rapid City: 209, 219, 341, 342, 343, 348, 355, 381, 385, 388, 389, 390, 391, 393, 394, 399, 415, 430, 431, 484, 519, 545, 593, 600, 646, 716, 718, 719, 721, 727, 737, 755, 786, 787, 791, 858, 863, 872, 877, 923, 939
- Redfield: 302, 313, 450, 460, 468, 472, 475
- Ree Heights: 943
- Reliance: 473
- Revillo: 623
- Roscoe: 276, 287
- Rosholt: 537
- Roslyn: 420, 486
- Salem: 240, 421, 425, 471
- Scotland: 583
- Selby: 643, 649
- Seneca: 436
- Sinai: 826
- Sioux Falls: 201, 212, 215, 221, 231, 241, 250, 251, 254, 261, 271, 274, 275, 305, 306, 310, 312, 321, 322, 323, 328, 330, 331, 332, 333, 334, 335, 336, 338, 339, 351, 357, 359, 360, 361, 362, 366, 367, 370, 371, 373, 376, 400, 403, 404, 413, 444, 496, 504, 509, 521, 553, 575, 595, 610, 679, 681, 705, 728, 731, 740, 759, 782, 789, 799, 800, 809, 838, 900, 906, 929, 937, 940, 941, 951, 961, 965, 977, 978, 988
- Sisseton: 268, 419, 698, 742, 927
- South Shore: 756
- Spearfish: 269, 340, 443, 549, 559, 566, 571, 578, 580, 584, 591, 631, 639, 641, 642, 644, 645, 717, 722, 920
- Spencer: 246
- Springfield: 369
- Stickney: 732
- Stockholm: 676
- Sturgis: 206, 347, 423, 490, 499, 561, 702, 720
- Summit: 398
- Tabor: 463
- Tea: 213, 214, 368, 408, 498, 667, 743, 767, 777
- Timber Lake: 865
- Tolstoy: 442
- Toronto: 794
- Tripp: 935
- Tulare: 596
- Turton: 897
- Tyndall: 464, 589
- Valley Springs: 757
- Veblen: 738
- Vermillion: 202, 581, 624, 638, 658, 659, 670, 672, 675, 677, 741
- Viborg: 326, 766
- Volga: 627, 827, 930
- Wagner: 384
- Wakonda: 267, 451
- Wall: 279, 515
- Wasta: 993
- Watertown: 237, 520, 753, 818, 868, 878, 880, 881, 882, 884, 886, 954, 956
- Waubay: 435, 947
- Webster: 265, 345, 588, 590
- Wentworth: 483
- Wessington: 458
- West Jasper: 349
- White: 304, 629
- White Lake: 249
- White River: 259
- Wilmot: 938
- Winner: 208, 840, 841, 842
- Wolsey: 497, 883
- Wood: 452
- Woonsocket: 796
- Worthing: 372
- Yankton: 260, 500, 653, 655, 660, 661, 664, 665, 668, 689, 760, 857, 975
- Premium calls (unassigned): 211, 308, 311, 320, 402, 406, 411, 476, 507, 511, 531, 536, 555, 605, 611, 621, 663, 700, 701, 711, 712, 811, 911, 921, 950, 958, 959, 976.