List of South Dakota numbered highways

infobox state highway system
shields=
caption=Standard South Dakota highway shields
(24x24 2d and 24x30 3d)
state=(State) Highway X (SD X)
interstate=Interstate X (I-X)
us=U.S. Highway X (US X)
notes=South Dakota highways are generally state-maintained.

South Dakota's state highways were assigned in a numbering pattern that followed that of the U.S. Highways followed upon their inception. east-west highways carried even numbers and increased from north to south - while north-south highways carried odd numbers and increased from east-to west. This holds true only for 2-digit highways. 3-digit highways follow the odd-even routing, but do not sequentially remain near a "parent" route as a spur or alternate route, instead being more independent of any parent 2d route.cite web |last=Geelhart |first=Chris |url=http://www.dm.net/~chris-g/sdhwy.html |title=Unofficial South Dakota Highways Page |accessdate=2007-02-25 |format= |work= ]

The Bureau of Indian Affairs maintains a set of routes within the reservations of western South Dakota - using the standard BIA shield on green background.Decommissioned highway numbers are listed in "italics".

tate Highways

Highways 1-10

*"South Dakota Highway 8"
*"South Dakota Highway 9"
*South Dakota Highway 10

Highways 11-20

*South Dakota Highway 11
*"South Dakota Highway 12"
*South Dakota Highway 13
*South Dakota Highway 15
*"South Dakota Highway 15A"
*"South Dakota Highway 15Y"
*"South Dakota Highway 16"
*"South Dakota Highway 16B"
*South Dakota Highway 17
*"South Dakota Highway 18"
*South Dakota Highway 19
*South Dakota Highway 19A
*South Dakota Highway 20
*"South Dakota Highway 20A"
*"South Dakota Highway 20 Spur"

Highways 21-30

*South Dakota Highway 21
*South Dakota Highway 22
*"South Dakota Highway 22 Spur"
*"South Dakota Highway 23"
*"South Dakota Highway 24"
*"South Dakota Highway 24A"
*South Dakota Highway 25
*South Dakota Highway 26
*South Dakota Highway 27
*South Dakota Highway 28
*South Dakota Highway 30

Highways 31-40

*South Dakota Highway 32
*South Dakota Highway 34
*"South Dakota Highway 35"
*South Dakota Highway 36
*South Dakota Highway 37
*South Dakota Highway 37A
*South Dakota Highway 38
*"South Dakota Highway 38A"
*South Dakota Highway 40
*"South Dakota Highway 40A"

Highways 41-50

*"South Dakota Highway 41"
*South Dakota Highway 42
*South Dakota Highway 43
*South Dakota Highway 44
*South Dakota Highway 45
*South Dakota Highway 46
*"South Dakota Highway 46 Spur"
*South Dakota Highway 47
*"South Dakota Highway 47W"
*South Dakota Highway 48
*South Dakota Highway 49

Highways 51-60

*South Dakota Highway 50
*South Dakota Highway 52
*South Dakota Highway 53
*"South Dakota Highway 54"
*"South Dakota Highway 55"
*"South Dakota Highway 59"

Highways 61-70

*"South Dakota Highway 61"
*South Dakota Highway 63
*South Dakota Highway 65

Highways 71-80

*South Dakota Highway 71
*South Dakota Highway 73
*South Dakota Highway 75
*South Dakota Highway 79

Highways 81-100

*"South Dakota Highway 81"
*"South Dakota Highway 83"
*"South Dakota Highway 85"
*South Dakota Highway 87
*South Dakota Highway 89

Highways 101-200

*South Dakota Highway 101
*"South Dakota Highway 102"
*"South Dakota Highway 103"
*"South Dakota Highway 105"
*South Dakota Highway 106
*South Dakota Highway 109
*South Dakota Highway 115
*"South Dakota Highway 116"
*South Dakota Highway 123
*South Dakota Highway 127
*South Dakota Highway 130
*South Dakota Highway 134
*"South Dakota Highway 136"
*South Dakota Highway 139
*South Dakota Highway 144
*"South Dakota Highway 147"
*South Dakota Highway 153
*South Dakota Highway 158
*South Dakota Highway 168

Highways 201-300

*South Dakota Highway 203
*South Dakota Highway 204
*"South Dakota Highway 214"
*"South Dakota Highway 218"
*South Dakota Highway 224
*South Dakota Highway 230
*"South Dakota Highway 232"
*South Dakota Highway 235
*South Dakota Highway 236
*South Dakota Highway 238
*South Dakota Highway 239
*South Dakota Highway 240
*South Dakota Highway 244
*"South Dakota Highway 245"
*South Dakota Highway 247
*South Dakota Highway 248
*South Dakota Highway 249
*South Dakota Highway 251
*South Dakota Highway 253
*South Dakota Highway 258
*South Dakota Highway 262
*"South Dakota Highway 264"
*South Dakota Highway 271
*South Dakota Highway 273
*"South Dakota Highway 296"
*"South Dakota Highway 298"

Highways 301-400

*South Dakota Highway 314
*South Dakota Highway 324
*"South Dakota Highway 365"
*South Dakota Highway 377
*South Dakota Highway 391

Highways 401-1806

*South Dakota Highway 407
*"South Dakota Highway 423"
*"South Dakota Highway 435"
*South Dakota Highway 437
*"South Dakota Highway 439"
*South Dakota Highway 445
*South Dakota Highway 471
*South Dakota Highway 473
*"South Dakota Highway 514"
*South Dakota Highway 1804
*South Dakota Highway 1806

Interstate Highways

*Interstate 29
*Interstate 90
*Interstate 190
*Interstate 229

U.S. Highways

*U.S. Route 12
*U.S. Route 14
*U.S. Route 14A
*U.S. Route 16
*U.S. Route 18
*"U.S. Route 77"
*U.S. Route 81
*U.S. Route 83
*U.S. Route 85
*"U.S. Route 85E"
*"U.S. Route 85A"
*U.S. Route 183
*U.S. Route 212
*"U.S. Route 216"
*U.S. Route 281
*U.S. Route 385

References

External links

* [http://mdo20.0catch.com/route/sd/sdsign.html Road Signs of South Dakota]
* [http://www.northernplainshighways.org/sdakota/index.html Unofficial South Dakota Highways Page]