This is a list of members of the South Australian Legislative Council from 1921 to 1924.
| Name | District | Party | Term expiry | Time in office | |
|---|---|---|---|---|---|
| Northern | 1927 | 1894–1923 | |||
| Central No. 1 | 1927 | 1915–1929 | |||
| Central No. 2 | Liberal | 1927 | 1915–1933 | ||
| Southern | Liberal | 1924 | 1910–1944 | ||
| Midland | Liberal | 1924 | 1918–1962 | ||
| Central No. 1 | Labor | 1924 | 1918–1931 | ||
| Midland | Liberal | 1924 | 1913–1944 | ||
| Midland | Liberal | 1927 | 1912–1941 | ||
| Central No. 2 | National Party/Liberal | 1924 | 1915–1935 | ||
| Central No. 1 | Labor | 1927 | 1912–1933 | ||
| Central No. 1 | Labor | 1924 | 1891–1897, 1900–1909, 1918–1928 | ||
| Northern | Liberal | 1927 | 1898–1923 | ||
| Southern | Liberal | 1927 | 1920–1938 | ||
| Southern | Liberal | 1927 | 1921–1927 | ||
| Northern | 1924 | 1918–1933 | |||
| Northern | Liberal | 1924 | 1915–1934 | ||
| Midland | Liberal | 1927 | 1900–1933 | ||
| Central No. 2 | Liberal | 1927 | 1921–1933 | ||
| Southern | Liberal | 1924 | 1891–1932 | ||
| Central No. 2 | Liberal | 1924 | 1918–1938 |
The sole remaining member of the National Party in the Legislative Council, Central No. 2 District MLC William Humphrey Harvey, joined the Liberal Union in July 1921.
Liberal Union MLC John Lewis died on 25 August 1923. The vacancy was filled simultaneously with the 5 April 1924 elections for the other class of seats, with Lewis' successor serving a half-term.
The Liberal Union and the National Party merged in October 1923 to form the Liberal Federation.
Liberal Federation MLC John George Bice died on 9 November 1923. The vacancy was filled simultaneously with the 5 April 1924 elections for the other class of seats, with Bice's successor serving a half-term.
The parliamentary wing of the Farmers and Settlers Association had been referred to by a variety of labels prior to this term of parliament, and had contested the 1921 election independently of the National-dominated "Progressive Country Party". After the 1921 election, the party formally adopted the "Country Party" name, consistent with their federal counterparts.