This is a list of members of the South Australian House of Assembly from 1921 to 1924, as elected at the 1921 state election:
| Name | Party | Electorate | Term of office |
|---|---|---|---|
| 1902–1912, 1915–1925 | |||
| Liberal | 1921–1938 | ||
| Liberal | 1915–1925 | ||
| 1921–1933 | |||
| Labor | 1918–1938 | ||
| Liberal | 1890–1924 | ||
| Liberal | 1915–1918, 1921–1938 | ||
| Labor | 1915–1917, 1918–1933 | ||
| 1918–1924 | |||
| Liberal | 1917–1924, 1924–1930, 1933–1938 | ||
| Labor | 1900–1905, 1906–1933 | ||
| Liberal | 1921–1924 | ||
| Labor | 1917–1931 | ||
| Labor | 1918–1936 | ||
| Liberal | 1921–1927 | ||
| Labor | 1915–1917, 1918–1926 | ||
| Liberal | 1912–1924 | ||
| Liberal | 1917–1924, 1925–1930, 1933–1938 | ||
| Liberal | 1921–1924 | ||
| Labor | 1918–1933 | ||
| Farmers and Settlers/ Country Party | 1921–1924 | ||
| Liberal | 1906–1915, 1923–1938 | ||
| Labor | 1915–1917, 1918–1933 | ||
| Liberal | 1912–1915, 1920–1938, 1941–1948 | ||
| Labor | 1921–1927 | ||
| Liberal | 1921–1924 | ||
| Liberal | 1918–1924, 1927–1930, 1933–1956 | ||
| Liberal | 1913–1933 | ||
| Labor | 1918–1950 | ||
| Farmers and Settlers/ Country Party | 1921–1959 | ||
| Liberal | 1918–1930 | ||
| Farmers and Settlers/ Country Party | 1921–1933 | ||
| Liberal | 1910–1933 | ||
| Liberal | 1915–1956 | ||
| Labor | 1918–1938 | ||
| Liberal | 1918–1924; 1941–1945 | ||
| Labor | 1915–1925 | ||
| Liberal | 1921–1924 | ||
| National/ Liberal | 1915–1932 | ||
| Liberal | 1921–1930 | ||
| Labor | 1918–1949 | ||
| Liberal | 1902–1922 | ||
| Liberal | 1915–1924, 1934–1943 | ||
| Liberal | 1915–1930 | ||
| Labor | 1918–1924, 1925–1927 | ||
| Labor | 1921–1927 | ||
| Liberal | 1912–1927 | ||
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.
Alexandra Liberal MHA George Ritchie resigned on 2 November 1922. Liberal candidate Percy Heggaton won the resulting by-election on 20 January 1923.
The Liberal Union and the National Party merged in October 1923 to form the Liberal Federation.