Skip to content

twenty cents

The 20 cent coin was first introduced with decimalisation on 14 February 1966. The original reverse design remained unchanged until 1995. This denomination has since been used infrequently for commemorative designs.

All of the first issue of 20 cent coins in 1966 was produced at the Royal Mint, London. The Royal Australian Mint did not commence 20 cent coin production until the next financial year. Quantities of 20 cents have also been struck by the Royal Mint, Llantrisant and the Royal Canadian Mint.

Nominal specifications

composition 75% copper 25% nickel
shape circular
edge milled
mass (grams) 11.3
diameter (millimetres) 28.65

Mintage figures

Reverse Design Year and design details Production details

RAM = Royal Australian Mint
RCM = Royal Canadian Mint
RML = Royal Mint, London
RMLL=Royal Mint, Llantrisant

20 cents reverse image - platypus

1966-1985

An impression of a platypus designed and sculpted by Stuart Devlin.

1966: 30 million, RML
1966: 28.2 million, RAM
1967: 83.8 million, RAM
1968: 40.5 million, RAM
1969: 16.5 million, RAM
1970: 23.7 million, RAM
1971: 8.9 million, RAM
1972: 16.6 million, RAM
1973: 23.4 million, RAM
1974: 33.5 million, RAM
1975: 53.3 million, RAM
1976: 59.8 million, RAM
1977: 41.3 million, RAM
1978: 37.4 million, RAM
1979: 22.3 million, RAM
1980: 84.4 million, RAM
1981: 65.5 million, RAM
1981: 50 million, RMLL
1981: 50 million, RCM
1982: 76.6 million, RAM
1983 : 55.1 million, RAM
1984: 27.8 million, RAM
1985: 2.7 million, RAM

No 20 cents were produced in 1986 or 1987

20 cents reverse image - platypus

1988

An impression of a platypus designed sculpted by Stuart Devlin.
0.2 million, RAM

No 20 cents were produced in 1989, 1990, 1991, 1992 or 1993

20 cents reverse image - platypus

1994

An impression of a platypus designed sculpted by Stuart Devlin.
14.3 million, RAM
20 cents reverse image - 50th anniversary of the United Nations

1995

Celebrating the 50th anniversary of the United Nations. Designed by Horst Hahne.

4.8 million, RAM
20 cents reverse image - platypus

1996-2001

An impression of a platypus designed and sculpted by Stuart Devlin.

1996: 20.6 million, RAM
1997: 16.7 million, RAM
1998: 28.8 million, RAM
1999: 64.2 million, RAM
2000: 35.6 million, RAM
2001: 82 million, RAM

20 cents reverse image - Sir Donald Bradman

2001

Celebrating the life and achievements of Sir Donald Bradman. Sculpted by Vladimir Gottwald
10 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for the Australian Capital Territory. Designed by Stacy Jo-Ann Paine of Caroline Chisholm High School.
2.1 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for New South Wales. Designed by Joseph Neve of Bellingen High School.
3.2 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for Norfolk Island. Designed by Megan Cummings of Norfolk Island Central School.
2.2 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for the Northern Territory. Designed by Lisa Brett of Leanyer School.
2.1 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for Queensland. Designed by Jenifer Gray of Ingham State High School.
2.3 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for South Australia. Designed by Lisa Murphy of Yankalilla Area School.
2.4 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for Tasmania. Designed by Abbey MacDonald of Launceston Church Grammar School.
2.2 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for Victoria. Designed by Ryan Douglas Ladd and Mark Aaron Kennedy of Lara Lake Primary School.
2.9 million, RAM
20 cents reverse image

2001

Centenary of Federation Student Design winner for Western Australia. Designed by Janice Ng of Forrestfield Senior High School.
2.4 million, RAM
20 cents reverse image - platypus

2002

An impression of a platypus designed and sculpted by Stuart Devlin.

27.2 million, RAM
20 cents reverse image

2003

Commemorating Australia's volunteers. Designed and sculpted by Vladimir Gottwald.
7.6 million, RAM
20 cents reverse image - platypus

2004-2005

An impression of a platypus designed and sculpted by Stuart Devlin.

2004: 72.1 million, RAM
2005: 58.6 million, RAM

20 cents reverse image

2005

Commemorating the 60th anniversary of the end of World War 2. This design was inspired by a photograph in the Australian War Memorial collection of a soldier returning home to his family. Designed and sculpted by Vladimir Gottwald.

33.5 million, RAM
20 cents reverse image - platypus

2006-2010

An impression of a platypus designed and sculpted by Stuart Devlin.

2006: 102.3 million, RAM
2007: 42.7 million, RAM
2008: 132.9 million, RAM
2009: 43.6 million, RAM
2010: 32.1 million, RAM

20 cents reverse image - platypus

2010

Commemorating the Centenary of the Australian Taxation Office.

2010: 11.6 million, RAM

20 cents reverse image - Women's Day

2011

Commemorating the International Women's Day.

2011: 6.8 million, RAM

 20 cents reverse image - Royal Wedding

2011

Commemorating the Royal Wedding of Prince William and Catherine Middleton.

2011: 10.1 million, RAM

20 cents reverse image - International Year of Volunteers

2011

Commemorating the International Year of Volunteers

2011: 6.1 million, RAM

20 cents reverse image - platypus

2011-2012

An impression of a platypus designed and sculpted by Stuart Devlin.

2011: 15.1 million, RAM
2012: 34.6 million, RAM

20 cents reverse image - Centenary of Canberra

2013

Commemorating the Centenary of Canberra.

2013: 6.2 million, RAM

20 cents reverse image - platypus

2013-2014

An impression of a platypus designed and sculpted by Stuart Devlin.

2013: 43.9 million, RAM
2014: not available

Notes for using these tables: These are final mintages where the numbers have been published in an Annual Report and all coins have been issued. Items marked not available will be updated when they pass the Annual Report and issue test.