The great majority of the Turkish population (~98%) are Muslim although since Atatürk's government in the 1920s and 1930s the state has been largely secularised. So yes, Trabzon, Turkey is a Muslim-majority like 98% of Turkey.

Yes. And people in trabzon are generally more religious compared to the people in the other cities of turkey.

all turkey is muslim area... but %99 is exaggerated number. there is %10-15 another religions... and another %20-30 is muslim on the paper or not practising...

in general trabzon is muslim too but there is one more characteristic "stubbornness".. it is well nown that blacksea region ppl are stubborn so this is making most muslims bigot. ( even nonmuslims are bigot)

The last time I knew, Turkey was 97% Muslim. So chances are the answer is yes.

of course it is,but it had some 100 years ago also a Pontic Greek population and some other ethnic groups I think.