Here is how Australia voted:
Note that I have read the titles in Bold, and I have linked to my review where available. The Asterix means it was on my ballot. Double Asterix means it was on my Wishlist.
14 Gail Honeyman, Eleanor Oliphant is Completely Fine
51 Taylor Jenkins Reid, The Seven Husbands of Evelyn Hugo
52 Stieg Larsson, The Girl with the Dragon Tattoo
53 Paul Lynch, Prophet Song
54 Graeme Simsion, The Rosie Project
83 Holly Ringland, The Lost Flowers of Alice Hart
84 Charlotte Wood, Stone Yard Devotional
85 Shankari Chandran, Chai Time at Cinnamon Gardens
86 David Mitchell, Cloud Atlas
87 Rebecca Yarros, Fourth Wing
88 *Helen Garner, This House of Grief
89 Geraldine Brooks, People of the Book
90 Adam Kay, This Is Going to Hurt: Secret Diaries of a Junior Doctor
91 Pip Williams, The Bookbinder of Jericho
92 Gillian Flynn, Gone Girl
93 Andy Weir, Project Hail Mary
94 George Saunders, Lincoln in the Bardo
1 Trent Dalton, Boy Swallows Universe 
2 Markus Zusak, The Book Thief
3 Amor Towles, A Gentleman in Moscow
4 Anthony Doerr, All The Light We Cannot See
5 Bonnie Garmus, Lessons in Chemistry
7 Pip Williams, The Dictionary of Lost Words
9 Hanya Yanagihara, A Little Life
12 Delia Owens, Where the Crawdads Sing
15 Geraldine Brooks, Year of Wonders
18 Bruce Pascoe, Dark Emu
20 Kate Grenville, The Secret River
22 Khaled Hosseini, The Kite Runner
23 Gabrielle Zevin, Tomorrow, and Tomorrow, and Tomorrow
24 Craig Silvey, Jasper Jones
25 Craig Silvey, Honeybee
27 Elena Ferrante, My Brilliant Friend
29 Trent Dalton, Lola in the Mirror
33 Min Jin Lee, Pachinko
36 Richard Osman, The Thursday Murder Club
37 Christos Tsiolkas, The Slap
38 Tim Winton, Breath
40 Tim Winton, Dirt Music
41 Douglas Stuart, Shuggie Bain
42 Fredrik Backman, A Man Called Ove
43 Anna Funder, All That I Am
44 Robbie Arnott, Limberlost
45 Audrey Niffenegger, The Time Traveler's Wife
46 Geraldine Brooks, Horse
47 JK Rowling, Harry Potter and the Goblet of Fire
48 Yann Martell, Life of Pi
49 Khaled Hosseini, A Thousand Splendid Suns
42 Fredrik Backman, A Man Called Ove
43 Anna Funder, All That I Am
44 Robbie Arnott, Limberlost
45 Audrey Niffenegger, The Time Traveler's Wife
46 Geraldine Brooks, Horse
47 JK Rowling, Harry Potter and the Goblet of Fire
48 Yann Martell, Life of Pi
49 Khaled Hosseini, A Thousand Splendid Suns
50 Alice Sebold, The Lovely Bones
52 Stieg Larsson, The Girl with the Dragon Tattoo
53 Paul Lynch, Prophet Song
54 Graeme Simsion, The Rosie Project
55 Bernadine Evaristo, Girl, Woman, Other
56 Alexander McCall Smith, The No. 1 Ladies' Detective Agency
57 Yuval Noah Harari, Sapiens
58 *Percival Everett, James
59 Mark Haddon, The Curious Incident of the Dog in the Night-Time
60 Madeline Miller, The Song of Achilles
61 Helen Garner, Joe Cinque's Consolation
62 Abraham Verghese, The Covenant of Water
56 Alexander McCall Smith, The No. 1 Ladies' Detective Agency
57 Yuval Noah Harari, Sapiens
58 *Percival Everett, James
59 Mark Haddon, The Curious Incident of the Dog in the Night-Time
60 Madeline Miller, The Song of Achilles
61 Helen Garner, Joe Cinque's Consolation
62 Abraham Verghese, The Covenant of Water
63 **Lionel Shriver, We Need to Talk about Kevin
64 Ann Patchett, Bel Canto
65 Richard Flanagan, Question 7
66 Heather Morris, The Tattooist of Auschwitz
67 **Madeline Miller, Circe
68 Tara Westover, Educated
69 Matt Haig, The Midnight Library
70 Emily St John Mandel, Station Eleven
71 Paul Murray, The Bee Sting
72 Mary Ann Schaffer, The Guernsey Literary and Potato Peel Pie Society
73 Eddie Jaku, The Happiest Man on Earth
74 Richard Powers, The Overstory
75 Anh Do, The Happiest Refugee
76 Mem Fox, Judy Horacek, Where is the Green Sheep?
77 Kate Atkinson, Life After Life
78 Kristin Hannah, The Women
79 **Colm Tóibín, Brooklyn
80 Bill Bryson, A Short History of Nearly Everything
81 Melissa Lucashenko, Too Much Lip
82 Alexis Wright, Carpentaria
64 Ann Patchett, Bel Canto
65 Richard Flanagan, Question 7
66 Heather Morris, The Tattooist of Auschwitz
67 **Madeline Miller, Circe
68 Tara Westover, Educated
69 Matt Haig, The Midnight Library
70 Emily St John Mandel, Station Eleven
71 Paul Murray, The Bee Sting
72 Mary Ann Schaffer, The Guernsey Literary and Potato Peel Pie Society
73 Eddie Jaku, The Happiest Man on Earth
74 Richard Powers, The Overstory
75 Anh Do, The Happiest Refugee
76 Mem Fox, Judy Horacek, Where is the Green Sheep?
77 Kate Atkinson, Life After Life
78 Kristin Hannah, The Women
79 **Colm Tóibín, Brooklyn
80 Bill Bryson, A Short History of Nearly Everything
81 Melissa Lucashenko, Too Much Lip
82 Alexis Wright, Carpentaria
84 Charlotte Wood, Stone Yard Devotional
85 Shankari Chandran, Chai Time at Cinnamon Gardens
86 David Mitchell, Cloud Atlas
87 Rebecca Yarros, Fourth Wing
88 *Helen Garner, This House of Grief
89 Geraldine Brooks, People of the Book
90 Adam Kay, This Is Going to Hurt: Secret Diaries of a Junior Doctor
91 Pip Williams, The Bookbinder of Jericho
92 Gillian Flynn, Gone Girl
93 Andy Weir, Project Hail Mary
94 George Saunders, Lincoln in the Bardo
95 **Susanna Clarke, Piranesi
96 Ann Patchett, Tom Lake
97 Peter Carey, True History of the Kelly Gang
98 John Boyne, The Heart's Invisible Furies
99 Jeffrey Eugenides, Middlesex
100 Liane Moriarty, Big Little Lies
96 Ann Patchett, Tom Lake
97 Peter Carey, True History of the Kelly Gang
98 John Boyne, The Heart's Invisible Furies
99 Jeffrey Eugenides, Middlesex
100 Liane Moriarty, Big Little Lies
So, what to make of the list?
I am pleased that 7 of my top ten picks, and 9 of my extended picks made it to the list. I have read 46 of the top 100, and at least eight others that I tried and did not finish. And there are a bunch of other titles on the list that I want to read and the countdown was a great reminder to put some of these higher up on my priority list.
While I picked books that were literary or had an impact on me long after finishing them, I had expected there would be a lot of popular titles on the list - overseas authors, titles popular with celebrity book clubs, and those that had been adapted. While there is a lot of this on the list, I find it odd that Chris Hammer was not included for Scrublands.
Unsurprisingly, the top 100 list is dominated by Australian authors with Muzak and Dalton taking out the top two spots. I have not read any of the top five - popular novels that have been adapted for TV/film. The list is predominately fiction, but some wonderful non-fiction, like Anna Funder's Wifedom and Stasiland, and Helen Garner's Joe Cinque's Consolation and This House of Grief, along with memoirs by Eddie Jaku and Anh Do, and Yuval Noah Harari's Sapiens are included. Great to see Aboriginal authors Alexis Wright, Melissa Lucashenko and Bruce Pascoe on the list, but was surprised Tara June Winch was not included.
If nothing else, the ABC Radio National Top 100 Books of the 21st century provided me with lots of enjoyment, and there are plenty of titles left for me to explore.