Islam has grown significantly to become the second largest religion in the world. Islam is growing at a rate of about 2.9 % per year which is faster than the total world population growth of about 2.3 % per year. It is therfore attracting a progressively larger percentage of the world's population, and is expected to take over from Christianity as the largest religion on the face of the Earth by the year 2025. The Times reports that Islam has already taken over Roman Catholicism to become the world's largest single religious denomination, according to L'Osservatore Romano, the Vatican newspaper. Figures for 2006 showed that Catholics accounted for 17.4 % of the world population while Muslims accounted for 19.2 %.
http://www.timesonline.co.uk/tol/news/world/article3653800.ece
| Top 10 Largest Muslim Populations & Largest % | |||||
| # | Country | Muslims | # | Country | Muslims |
| 1. | Indonesia | 210,000,000 | 1. | Saudi Arabia | ≈ 100 % |
| 2. | India | 160,500,000 | 2. | Afghanistan | 99 % |
| 3. | Pakistan | 160,000,000 | 3. | Mauritania | 99 % |
| 4. | Bangladesh | 155,500,000 | 4. | Somalia | 99 % |
| 5. | Egypt | 80,000,000 | 5. | Yemen | 99 % |
| 6. | Nigeria | 75,000,000 | 6. | Oman | 99 % |
| 7. | Iran | 72,000,000 | 7. | Algeria | 99 % |
| 8. | Turkey | 71,000,000 | 8. | Morocco | 99 % |
| 9. | Morocco | 34,000,000 | 9. | Tunisia | 99% |
| 10. | Algeria | 33,500,000 | 10. | Maldives | 99 % |
Continental Populations - 2006 (millions)
| Continent | Total Population | Muslim Population | Muslim % |
| Asia | 3970.5 | 1060.65 | 26.71 |
| Africa | 923.2 | 442.88 | 47.97 |
| Europe | 731.7 | 50.7 | 6.93 |
| North America | 331.7 | 7.13 | 2.15 |
| South America | 566.05 | 3.08 | 0.54 |
| Oceania | 33.54 | 0.6 | 1.79 |
| Total | 6313.78 | 1565.28 | 24.79 |
