Special Census happened in regions that were essential to Ottoman Empire which held four general census, they had multiple tallies but there are not yet been uncovered summaries distributed in Ottoman Archives.
The Ottoman Empire (/tmn/; Ottoman Turkish:    Devlet-i Aliye-i Osmaniye, literally "The Sublime Ottoman State"; Modern Turkish: Osmanl Imparatorlugu or Osmanl Devleti; French: Empire ottoman) was a state that controlled much of Southeastern Europe, Western Asia, and Northern Africa between the 14th and early 20th centuries. The Ottomans, rulers of Ottoman Empire, did develop a reasonably efficient system for counting the empire's population only a quarter century after census procedures were introduced in the United States of America , Great Britain , and France. Four general censuses were held in the Ottoman Empire. These were 1831 census, 188182 census, 190506 census, and 1914 census. There were many special census, which Istanbul (Capital) is well known. There is considerable evidence that the census was taken throughout the empire, but it was accomplished under such severe difficulties that its results must be considered no more than estimates. The census takers were untrained and mostly unsupervised. The 1831 census remained the only empire-wide count for official and private use for at least fifteen years, that was the beginning of Tanzimat. Sultan Mahmut II recorded the first general census as part of his effort to create a new army (Nizam- Cedid Army) and bureaucracy, a period known as Nizam- Cedid, following the destruction of the Janissary Corps, known as Auspicious Incident, in 1826. The first Ottoman general census was completed in 1831. To provide general supervision and control and to compile and keep empire-wide population records, a separate Census Department (Ceride-i Nufus Nezareti) was established for the first time as part of the Ministry of the Interior. There were cities, regions that were essential to Ottomans. While empire-wide census reports performed only sporadically, these cities or regions had multiple tallies. The city Istanbul had tallies in 1835, 1838, 1844, and 1857. There are not yet been uncovered summaries distributed in Ottoman Archives (around the Europe and Middle East) after the dissolution and partitioning of the Empire. 
