State elections were held in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

 on 5 April 1930. All 46 seats in the South Australian House of Assembly

South Australian House of Assembly

The House of Assembly, or lower house, is one of the two chambers of the Parliament of South Australia. The other is the Legislative Council. It sits in Parliament House in the state capital, Adelaide.- Overview :...

 were up for election. The incumbent Liberal Federation

Liberal Federation

The Liberal Federation was a liberal conservative South Australian political party from 1922 to 1932. It stemmed from the Liberal Union's Henry Barwell. Richard Layton Butler was also premier during the party's time. It was a predecessor to the Liberal and Country League....

 government led by Premier

Premiers of South Australia

Before the 1890s when there was no formal party system in South Australia, MPs tended to have historical liberal or conservative beliefs. The liberals dominated government from 1893 to 1905 with Labor support, with the conservatives mostly in opposition. Labor took government with the support of...

 of South Australia Richard L. Butler

Richard Layton Butler

Sir Richard Layton Butler KCMG was the 31st Premier of South Australia, serving two disjunct terms in office: from 1927 to 1930, and again from 1933 to 1938....

 was defeated by the opposition Australian Labor Party

Australian Labor Party

The Australian Labor Party is an Australian political party. It has been the governing party of the Commonwealth of Australia since the 2007 federal election. Julia Gillard is the party's federal parliamentary leader and Prime Minister of Australia...

 led by Leader of the Opposition

Leader of the Opposition (South Australia)

The Leader of the Opposition in South Australia is the leader of the largest minority political party or coalition of parties, known as the Opposition, in the House of Assembly of the Parliament of South Australia. By convention, he or she is generally a member of the House of Assembly...

 Lionel Hill

Lionel Hill

Lionel Laughton Hill was the thirtieth Premier of South Australia.Born in Adelaide, South Australia but raised on a farm near Maitland, Hill left school aged 12 to work on the South Australian government railways, where he first became involved in the labour movement...

.

Each district elected multiple members. This election saw the change from First past the post

Plurality voting system

The plurality voting system is a single-winner voting system often used to elect executive officers or to elect members of a legislative assembly which is based on single-member constituencies...

 (plurality) to Instant-runoff

Instant-runoff voting

Instant-runoff voting , also known as preferential voting, the alternative vote and ranked choice voting, is a voting system used to elect one winner. Voters rank candidates in order of preference, and their ballots are counted as one vote for their first choice candidate. If a candidate secures a...

 (preferential) voting, which also meant that electors cast a single vote rather than multiple votes. In terms of seats, the election remains the biggest win for Labor in the South Australian House of Assembly.

House of Assembly (IRV

Instant-runoff voting

Instant-runoff voting , also known as preferential voting, the alternative vote and ranked choice voting, is a voting system used to elect one winner. Voters rank candidates in order of preference, and their ballots are counted as one vote for their first choice candidate. If a candidate secures a...

) — Turnout 71.36% (Non-CV

Compulsory voting

Compulsory voting is a system in which electors are obliged to vote in elections or attend a polling place on voting day. If an eligible voter does not attend a polling place, he or she may be subject to punitive measures such as fines, community service, or perhaps imprisonment if fines are unpaid...

) — Informal 5.71%

	Party	Votes	%	Swing	Seats	Change
	Australian Labor Party Australian Labor Party The Australian Labor Party is an Australian political party. It has been the governing party of the Commonwealth of Australia since the 2007 federal election. Julia Gillard is the party's federal parliamentary leader and Prime Minister of Australia...	102,194	48.64	+0.65	30	+14
	Liberal Federation Liberal Federation The Liberal Federation was a liberal conservative South Australian political party from 1922 to 1932. It stemmed from the Liberal Union's Henry Barwell. Richard Layton Butler was also premier during the party's time. It was a predecessor to the Liberal and Country League....	74,930	35.66	*	13	*
	Country Party	14,555	6.93	*	2	*
	Independent Labor Party	5,944	2.83	*	0	0
	Independent	4,876	2.32	-2.14	0	0
	Independent Protestant Labor Party	4,132	1.97	-0.11	0	-1
	Single Tax League Single Tax League The Single Tax League was an Australian political party that flourished throughout the 1920s and 30s.Based upon the ideas of Henry George, who argued that all taxes should be abolished, save for a single tax on unimproved land values, the Single Tax League was founded shortly after World War I, and...	2,777	1.32	*	1	*
	Other	696	0.33
	Total	210,104			46
	Australian Labor Party Australian Labor Party The Australian Labor Party is an Australian political party. It has been the governing party of the Commonwealth of Australia since the 2007 federal election. Julia Gillard is the party's federal parliamentary leader and Prime Minister of Australia...	WIN			30	+14
	Liberal Federation Liberal Federation The Liberal Federation was a liberal conservative South Australian political party from 1922 to 1932. It stemmed from the Liberal Union's Henry Barwell. Richard Layton Butler was also premier during the party's time. It was a predecessor to the Liberal and Country League....				13	*

• Four ALP seats were won uncontested.