The history of town is related to that of Trabzons in general. According to historical reports, the town has been settled down by so many tribes since Hittites. It fell under the hegemony of Pechenegs and Byzantines. Ultimately, in 1461, Mehmed II took Trabzon from Pontus Empire and it came under the rule of Ottoman Empire. In 1915, during the World War I, the town was invaded by Russian Army.

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.

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.

There is almost no scientific litterateur about the history of Koprubasi and the first habitation process. According to the information we got; some of the Turkish tribes which migrated from Central Asia came to Trabzon after the conquest and were placed in some available areas. Before the settling, Koprubasi was full of rich forests and the sun could not heat the soil due to the density of trees.