List of members of the South Dakota Senate

These tables are historical listings of state senators who served in the South Dakota Senate from statehood in 1889 until the present.

Non-Partisan

Populist

Republican

Members of the South Dakota State Senate (1889–1939)

45 senators elected from 41 districts. Senators were elected from single-member districts, with five counties each electing two at-large senators. The number of senators was reduced to 43 senators from 1893 to 1899. A 42nd District was added in 1909.

District	Seats	Years	County
9th	2	1889–1909	Minnehaha
10th	2	1909–1939	Minnehaha
30th	2	1889–1893	Spink
32nd	2	1899–1909	Day
33rd	2	1909–1939	Brown
35th	2	1909–1939	Brown
38th	2	1889–1893; 1899–1909	Lawrence
39th	2	1909–1939	Lawrence

Members of the South Dakota State Senate (1939–1967)

35 senators elected from 33 districts. Three counties each elected two at-large senators.

District	Seats	Years	County
7th	2	1939–1967	Minnehaha
22nd	2	1939–1961	Brown
28th	2	1963–1967	Pennington

Members of the South Dakota State Senate (1967-Present)

35 senators elected from 35 single-member districts. From 1967 to 1973, there were only 29 districts, with three counties each electing more than one at-large member. District 29 was eliminated from 1973 to 1985, when it became District 11's fifth at-large seat. In 1985, all remaining multi-member districts were eliminated, establishing the current 35 single-member districts.

District	Seats	Years	County
2nd	2	1967–1985	Brown
11th	4	1967–1973	Minnehaha
11th	5	1973–1985	Minnehaha
28th	3	1967–1973	Pennington
27th	3	1973–1985	Pennington