| # | Population | Country | Answer | % Correct |
|---|---|---|---|---|
| 1 | 28,900,000 | Indonesia | Jakarta | 99%
|
| 2 | 14,800,000 | South Africa | Johannesburg | 98%
|
| 4 | 5,500,000 | Saudi Arabia | Jeddah | 92%
|
| 11 | 1,040,000 | Israel | Jerusalem | 91%
|
| 13 | 492,300 | Palestine | Jerusalem | 91%
|
| 5 | 4,275,000 | India | Jaipur | 86%
|
| 6 | 2,025,000 | United States | Jacksonville | 84%
|
| 20 | 230,195 | South Sudan | Juba | 76%
|
| 8 | 1,512,450 | Mexico | Juárez | 71%
|
| 3 | 6,350,000 | China | Jìnán | 65%
|
| 7 | 1,994,365 | Malaysia | Johor Bahru | 54%
|
| 10 | 1,110,000 | Nigeria | Jos | 44%
|
| 9 | 1,160,000 | Brazil | João Pessoa | 37%
|
| 21 | 198,930 | Spain | Jerez de la Frontera | 36%
|
| 34 | 101,440 | Sweden | Jönköping | 36%
|
| 17 | 271,900 | Afghanistan | Jalalabad | 33%
|
| 33 | 110,600 | Germany | Jena | 32%
|
| 31 | 131,432 | Finland | Jyväskylä | 24%
|
| 46 | 55,953 | Latvia | Jelgava | 13%
|
| 12 | 666,517 | South Korea | Jeonju | 13%
|
| 40 | 80,829 | Sri Lanka | Jaffna | 10%
|
| 37 | 88,998 | Poland | Jaworzno | 8%
|
| 48 | 54,072 | Canada | Joliette | 8%
|
| 39 | 83,400 | Uganda | Jinja | 7%
|
| 14 | 452,259 | Kuwait | Jahra | 6%
|
| 50 | 50,523 | Czech Republic | Jihlava | 6%
|
| 30 | 131,513 | Algeria | Jijel | 5%
|
| 19 | 250,900 | Ethiopia | Jima | 5%
|
| 23 | 191,620 | Uzbekistan | Jizzax | 5%
|
| 24 | 188,490 | Philippines | Jolo | 5%
|
| 16 | 316,900 | Peru | Juliaca | 5%
|
| 26 | 159,840 | Guatemala | Jalapa | 4%
|
| 18 | 253,019 | Bangladesh | Jessore | 3%
|
| 15 | 414,309 | Pakistan | Jhang | 3%
|
| 25 | 188,047 | Japan | Jōetsu | 2%
|
| 49 | 53,989 | Syria | Jablah | 1%
|
| 32 | 129,149 | Somalia | Jamame | 1%
|
| 22 | 194,556 | Nepal | Janakpur | 1%
|
| 47 | 54,989 | Tunisia | Jemmal | 1%
|
| 36 | 90,400 | Argentina | Junín | 1%
|
| 43 | 66,284 | Oman | Ja'alān Banī Bū 'Alī | 0%
|
| 29 | 141,634 | Iran | Jahrom | 0%
|
| 44 | 65,274 | Iraq | Jamjamāl | 0%
|
| 28 | 142,000 | Colombia | Jamundi | 0%
|
| 38 | 88,812 | Kazakhstan | Jezkazgan | 0%
|
| 45 | 56,910 | Nicaragua | Jinotega | 0%
|
| 35 | 95,045 | Jordan | Jizeh | 0%
|
| 41 | 76,555 | Egypt | Juhaynah | 0%
|
| 27 | 156,041 | Kenya | Juja | 0%
|
| 42 | 75,790 | Honduras | Juticalpa | 0%
|