It is known that settlement dates back to ancient times in Şalpazarı. The Çepnis who live in this region are the people who came from Ucoklar tribe of Oghuzs. It is known that Cepni people came to city before the conquest of Trabzon, during the period of Uzun Hasan in groups. The word of Cepni means strong to the enemy, brave and merciful to the oppressed, honest. It reflects the features of the people living there.

Hence the very old ages, the history of Dernekpazari is parallel with the Eastern Black Sea Region which contains this county within its borders. That is why it would not be possible to evaluate the county's history without taking a look at surrounding areas. Because it shared the same destiny and experienced the same processes with other settlements up to today.

There is no certain knowledge about the first establishment of Tonya but it is understood that it was between the end of 13th century and the beginning of 14th century. With the conquest of Trabzon by the Turks in 1461, Rum Pontus Empire's sovereignty came to an end. Ottoman Period went by with the transculturation of native Rums and Turkish people, who came as immigrants. In this period, both Rum and Turkish cultures interacted with each other. This interaction shows itself even today.

Our county had been a village with the name of “Haçka” before it became a county in 1944 and its name has been changed as “Düzköy” when it became a municipality in 1961. It was a municipality of Akçaabat untill 9th May 1990 when it became a county with the law of 3644. County of Düzköy is consisted of 6 different neighbourhoods as Düzalan, Orta Mahalle, Büyük Mahalle, Cevizlik Mahallesi, Yenimahalle, Tepecik.