what percentage of the population in turkey is muslim

Most estimates put Turkey’s Muslim population at about 99% of the country, though some surveys report lower figures such as around 89% depending on how religion is measured and whether people are asked about belief, identity, or practice.

Why the numbers differ

• Some sources count self-identified Muslims , which tends to give a higher share.
• Other surveys include religious affiliation, practice, and nonreligious identity , which lowers the percentage.
• Turkey is also a secular state , so the official government framework is separate from personal religion.

Practical answer

If you just need a single quick figure, about 99% is the most commonly cited headline number.

If you want a more survey-based estimate, about 89% is another widely cited figure.

TL;DR: Turkey is overwhelmingly Muslim, with estimates generally ranging from 89% to 99% depending on the source and method.