States[]
| State | Population |
|---|---|
| Duck Island, Duck Island 2, Duck Island 3 and Peng Island | 9,100,000 |
| Duck Island | 6 million |
| Duck Island 2 | 1,200,000 |
| Duck Island 3 | 700,000 |
| Peng Island | 1,200,000 |
| Duckland, Grape Island, Leek Island, Quackland, Quackerland and Quack Island | Around 6 million |
| Duckland | Around 1 million |
| Grape Island | Around 1 million |
| Leek Island | Around 1 million |
| Quackland | Around 1 million |
| Quackerland | Around 1 million |
| Quack Island | Around 1 million |
| Other states | Unknown |
| Annonia | 7,5 million |
| Motivaro | 225,000 (2018 census) 220,001 (2012 census) |
| Noot Island | 5 million |
| Rekt Islands | 250,000 |
| Baaa! | Unknown |
| Club Bear | Unknown |
| Monitorpig | Unknown |
| Tempest Island | Unknown |
Cities[]
| Largest population centres of Duck Island Largest cities of Duck Island | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rank | City name | State | Pop. | Rank | City name | State | Pop. | ||
 New Duck City
|
1 | New Duck City | Duck Island | 2,500,000 | 11 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 |  Annonia City
|
| 2 | New Annonia City | Annonia | 2,499,000 | 12 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 3 | Annonia City | Annonia | 1,750,000 | 13 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 4 | Noot City | Noot Island | 1,550,000 | 14 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 5 | Pinguville | Annonia | 1,250,000 | 15 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 6 | Duck City | Duck Island | 1,150,000 | 16 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 7 | Peng Island City | Peng Island | 1,100,000 | 17 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 8 | Peng City | Duck Island | 1,050,000 | 18 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 9 | Youtropolis | Duck Island 2 | 750,000 | 19 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||
| 10 | Porktown | Duck Island 2 | 450,000 | 20 | Club Penguin Fanon Wiki | Club Penguin Fanon Wiki | 0 | ||