| # | Population Estimate | Country | % Correct |
|---|---|---|---|
| 4 | 447,483,156 | United States of America | 100%
|
| 2 | 1,020,665,216 | China | 96%
|
| 1 | 1,516,597,380 | India | 96%
|
| 3 | 793,942,316 | Nigeria | 95%
|
| 7 | 306,025,532 | Indonesia | 91%
|
| 6 | 351,942,931 | Pakistan | 85%
|
| 5 | 378,975,244 | Democratic Republic of the Congo | 82%
|
| 9 | 249,529,919 | Ethiopia | 75%
|
| 8 | 303,831,815 | Tanzania | 62%
|
| 10 | 213,758,214 | Uganda | 44%
|