Civil Registration Department was established in solar year 1297 (A.D.1918) to register vital events . Registration of Birth , Death , Marriage and divorce by the Department stipulated establishment of an organization responsible for collection of information on the country's population . this led to the approval of a regulation in solar year 1303 (A.D.1924) where by the department responsible for statistics and its duties was determined and responsibility for collection and centralization of necessary statistics was entrusted to the Ministry of the Interior .

    In Khordad , solar year 1318 (A.D.June, 1939), the first census law was approved by National Council Parliment . In execution of the law , from 10th Esfand (March) of the same year, the population census was taken only in Tehran and in solar years 1319 and 1320 (A.D. 1940 and 1941) 33 cities were gradually enumerated . In Esfand , solar year 1331 (March, 1952) Cooperation Organization of Public Statistics was established . Statistics and census law was approved in Farvardin , solar year 1332 (A.D. April, 1958). In that year , Department of Statistics and Census seceded from the General Department of Statistics and civil Registration and joined the Cooperation Organization of Public Statistics . Thus , for the first time an organization exclusively responsible for collection of statistics was established and was renamed Department of Public Statistics affiliated to the Ministry of the Interior in solar year 1334 (1956).

    The Department implemented the first national census of population and housing in solar year 1335 (1956). Upon establishment of the Department of Public Statistics , statistical activities entered new stage and different kinds of surveys were annually executed in different Socio-economic areas the most important of which are as follows :

• Agriculture Survey in solar year 1330 (1960)
  
• Population sample Survey in solar year 1342 (1963)
  
• Manufacturing establishments Census in Solar year 1342 (1963)
  
• Household budget Survey in solar year 1342 (1963)
  

    According to the solar year 1344 (1965) Law and due to increasing reqirements of planning organizations for information and statistics as well as necessity of very close collaboration of main organization producing statistics with the planning organizations , the Department of Public Statistics was detached from the Ministry of the Interior and transformed into the Statistical Center of Iran affiliated to the Plan and Budget Organization .

    In the year 1379 (2000), the Plan and Budget Organization and the State Organization for Employment and Administrative Affairs merged to gether into Managment and Planning Organization , to which the Statistical Centre of Iran is now affiliated .