Aim: This research was conducted to reveal the current situation on information requirements of the families of the mainstreaming students and sources they obtained information.Method: The research is a cross-sectional study and the population consisted of parents whose children need special education and who are in schools located in Altındağ, Yenimahalle, and Çankaya districts of Ankara, which are at low, middle, and high levels, respectively, according to the socioeconomic development. Sample selection was not made. A survey was distributed to 1,151 families of the mainstreaming students in 72 elementary schools in the selected districts, and 404 questionnaires that had been returned were evaluated. A questionnaire developed by the researchers was used as the data collection form.Results: A total of 75.1% of families are mothers and 24.9% are fathers. In total, 26.5% of families stated that they did not have sufficient information about the diagnosis of their child, 64.2% of the families stated that they want to be informed about adaptation to school life, 25.1% about daily life activities, nutrition, and care skills, and 48.2% of families stated that they are not in cooperation with health care professionals, whereas 57.8% of the families who have sufficient information about the diagnosis of the child are in cooperation with health care professionals; this rate was found to be 31.4% in those who do not have information. Among the health care professionals, where families receive information about the diagnosis of the child, physicians are the most frequently received occupational group, with 82.3%. The rate of receiving information from nurses was found to be 3.4%.Conclusion: Families of mainstreaming students have need for information regarding the diagnosis of the child. The nurse group has a very low rate among the sources they get information from. It can be said that families do not cooperate adequately with health care professionals.