Government of South Australia#Department of Planning and Local Government

{{further|British colonisation of South Australia| History of South Australia}}

South Australia was established via letters patent by King William IV in February of 1836, pursuant to the South Australian Colonisation Act 1834. Governance in the colony was organised according to the principles developed by Edward Wakefield, where settlement would be conducted by free settlers rather than convicts.{{cite web |last1=Museum of Australia Democracy |title=South Australia Act, or Foundation Act, of 1834 (UK) |url=https://www.foundingdocs.gov.au/item-sdid-37.html |website=Documenting Democracy: Australia's Story |publisher=Museum of Australian Democracy |access-date=12 February 2024}} Therefore governance would be divided between the Governor who was responsible to the British Crown and tasked with the authority to make laws,{{cite web | title= South Australia Achieves Self Government in 1857| website=parliament.sa.gov.au | url=https://www.parliament.sa.gov.au/en/About-Parliament/The-First-Parliament | access-date=17 December 2023}}{{cite web| url=https://www.parliament.sa.gov.au/en/About-Parliament/History| title=History| website =Parliament of South Australia |access-date=9 March 2022}} and Colonisation Commissioners who were responsible for the sale of land to settlers to fund the colony. This structure was found to be troublesome as the commission had control of the funds rather than the Governor, and as a result in 1838, the Governor was appointed Resident Commissioner to resolve conflict.{{cite book |last1=Selway |first1=Bradley |title=The Constitution of South Australia |date=1997 |publisher=Federation Press |location=Leichhardt, New South Wales |isbn=9781862872516 |page=1-9}}

In 1842 the British Parliament reorganised the structure of South Australia's governance by abolishing the Colonisation Commission and creating a Legislative Council of eight people (including the Governor) to exercise the legislative power of the colony.{{cite web |last1=Museum of Australian Democracy |title=South Australia Act 1842 (UK) |url=https://www.foundingdocs.gov.au/item-did-5.html |website=Documenting Democracy |publisher=Museum of Australian Democracy |access-date=12 February 2024}} In 1850 the British Parliament passed the Australian Constitutions Act 1850, which empowered the Legislative Council to alter its own composition. The Legislative Council responded by passing the Constitution Act 1856, which created a bicameral parliament and an executive responsible to it. Boyle Finniss was appointed the first Premier of South Australia as part of an interrim executive until elections to the new Parliament could be held in 1857.{{cite web |last1=Parliament of South Australia |title=South Australia Achieves Self-Government in 1857 |url=https://www.parliament.sa.gov.au/en/About-Parliament/The-First-Parliament |website=The First Parliament |publisher=Parliament of South Australia |access-date=12 February 2024}}{{cite web |last1=Australian Dictionary of Biography |title=Boyle Travers Finniss (1807–1893) |url=https://adb.anu.edu.au/biography/finniss-boyle-travers-2044#:~:text=Boyle%20Travers%20Finniss%20(1807%2D1893)%2C%20soldier%2C%20surveyor,his%20wife%20Susanna%2C%20née%20Major. |website=Australian Dictionary of Biography |publisher=Australian National University |access-date=12 February 2024}}

The executive comprised ministers selected from the Parliament and the Governor was no longer able to unilaterally make most decisions. The new Parliament and Executive took over almost all of the powers held by the Secretary of State for the Colonies regarding the appointment to official positions in the colony, immigration, and customs matters.

When federation occurred in 1901, South Australia became a state of the Commonwealth of Australia under the Constitution of Australia, which regulates the South Australia's relationship with the Commonwealth.{{cite web | title=Australian system of government | website=Parliamentary Education Office| publisher= Australian Government | date=8 November 2021 | url=https://peo.gov.au/understand-our-parliament/how-parliament-works/system-of-government/australian-system-of-government/ | access-date=9 March 2022}} The state ceded certain executive powers (such as defence and customs),{{Cite Legislation AU|Cth|act|coaca430|Australian Constitution|69}} but retained powers in all matters not withdrawn from them or in conflict with the Commonwealth.{{Cite Legislation AU|Cth|act|coaca430|Australian Constitution|107}}{{Cite Legislation AU|Cth|act|coaca430|Australian Constitution|109}}

In 1934, the Constitution Act 1856 was repealed and replaced with the Constitution Act 1934,{{cite web |url=http://www.austlii.edu.au/au/legis/sa/consol_act/ca1934188/notes.html |title=Constitution Act 1934 - Notes |access-date=9 March 2022| via=Austlii}} which remains in force today with amendments.{{cite web |url=http://www.austlii.edu.au/au/legis/sa/consol_act/ca1934188/ |title=Constitution Act 1934 |publisher=Government of South Australia |via=Austlii |access-date=9 March 2022}}

South Australia is governed according to the principles of the Westminster system, a form of parliamentary government based on the model of the United Kingdom.{{cite web| url=https://www.parliament.sa.gov.au/en/About-Parliament/The-Government-of-SA| title=The Government of South Australia| website =Parliament of South Australia |access-date=9 March 2022}}

Executive power rests formally with the Executive Council, which consists of the governor and senior ministers. The Governor plays an important practical role under the state's constitution and fulfils a symbolic role as local head of state. The Governor is appointed by the King and, for most practical purposes, exercises His Majesty's powers in the state. These include the fundamental powers to dissolve Parliament, call elections and appoint and dismiss ministers. The Governor in Executive Council is the formal mechanism for administration of the state. Many of the decisions made by Cabinet do not have legal effect until they are signed by the Governor in Executive Council. All items for the approval of the Governor in Executive Council must first be considered by Cabinet, with the exception of the assent to Acts. When exercising a statutory power, the Governor must act with the advice and consent of Executive Council. All ministers are ex officio members of Executive Council.{{cite web | title=Executive Council | website=Department of the Premier and Cabinet (SA) | date=28 March 2019 | url=https://www.dpc.sa.gov.au/responsibilities/cabinet-and-executive-council/executive-council | access-date=17 December 2023}} 50px Text has been copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0 Attribution 4.0 International (CC BY 4.0)] licence.

In practice, executive power is exercised by the premier of South Australia and the Cabinet of South Australia, who advise the Governor. The Cabinet comprises 15 ministers, headed by the Premier, who are either members of the House of Assembly or the Legislative Council. Cabinet is responsible for determining policies which are submitted to Parliament.

{{main|Malinauskas ministry|Cabinet of South Australia}}

As of 15 April 2024, the ministry of the South Australian Government comprised the following 14 Labor Party members and 1 Independent member:{{Gazette SA|title=Governor's Instruments|issue=27|page=682|date=15 March 2025|url=https://www.governmentgazette.sa.gov.au/2024/April/2024_027.pdf|access-date=15 April 2024}}

{{main|List of South Australian government agencies}}

The South Australian Government is divided into departments or attached offices to those departments. Departments and their attached offices are overseen by a government minister who is a member of the Parliament. However some departments or attached offices may be afforded a degree of independence by statute and may only be subject to ministerial direction in specific circumstances (for example the Audit Office or the Electoral Commission). There are currently 21 departments, though not all of them use the word department in their title.

• Attorney-General's Department
• Audit Office of South Australia
• Department for Child Protection
• Department for Correctional Services
• Defence SA
• Department for Education
• Office for Early Childhood Development
• Electoral Commission of South Australia
• Department for Energy and Mining
• Office of Hydrogen Power South Australia
• Office of Northern Water Delivery
• Department for Environment and Water
• Environment Protection Agency (EPA)
• Office of Green Industries SA
• Department of Health and Wellbeing
• Commission on Excellence and Innovation in Health
• Preventative Health SA
• Department for Housing and Urban Development
• Department of Human Services
• Department for Infrastructure and Transport
• Office of Recreation, Sport and Racing
• Department of the Premier and Cabinet
• Office of the Commissioner for Public Sector Employment
• Premier's Delivery Unit
• Office of the South Australian Productivity Commission
• Department of Primary Industries and Regions (PIRSA)
• South Australian Police Department
• Department of State Development
• Department of Treasury and Finance
• Office of Venue Management{{cite web |last1=Office of Parliamentary Counsel |title=Administrative Units of the Public Service of South Australia |url=https://www.legislation.sa.gov.au/__data/assets/pdf_file/0020/1108433/2025.01.29-Administrative-Units.pdf |website=South Australian Legislation |publisher=Office of Parliamentary Counsel |access-date=13 February 2025}}

• South Australian Forestry Corporation trading as ForestrySA{{cite web|title=ForestrySA Corporate Overview|url=http://www.forestrysa.com.au/About-Us/CorporateOverviewandCharter|publisher=ForestrySA|access-date=18 August 2015|archive-url=https://web.archive.org/web/20150924014600/http://www.forestrysa.com.au/About-Us/CorporateOverviewandCharter|archive-date=24 September 2015|url-status=dead}}
• South Australian Water Corporation trading as SA Water{{cite web|title=About us|url=http://www.sawater.com.au/about-us/about-us|publisher=SA Water|access-date=18 August 2015|archive-date=19 November 2016|archive-url=https://web.archive.org/web/20161119142853/http://www.sawater.com.au/about-us/about-us|url-status=dead}}

{{Portal|South Australia|Government}}

• First Nations Voice to Parliament (South Australia)
• List of South Australian government agencies
• List of South Australian Ministries

{{Reflist|30em}}

• {{official|https://www.sa.gov.au/}}
• [http://www.austlii.edu.au/au/legis/sa/consol_act/ca1934188/ The Constitution of South Australia]

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{{Government of South Australia}}

{{Politics of Australia}}

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