Background: Lung cancer is among the most important health problems of today with increasing incidence and mortality rates. Despite advances in multidisciplinary approaches and increasing diagnostic methods, basic studies to raise awareness should be made, as they are often caught in advanced stages. In this respect, patients who underwent surgical resection for primary lung cancer in our clinic were evaluated retrospectively. We aimed to present the clinical and demographic characteristics of lung cancer and to reevaluate the cancer data according to the general characteristics of our country with the analysis of the data we obtained. Materials and Methods: This study included 278 patients who underwent surgery between January 2016 and May 2019 with histopathological diagnosis of non-small cell lung carcinoma. The data of the patients were analyzed retrospectively in terms of age, sex, histological type, type of surgery, pathologic stage and tumor locations Results: The most common age range was between the fourth and sixth decades. Male to female ratio was 9/1. 50% (139 patients) of the cases were squamous cell carcinoma. The most common localization in lung cancer was left upper lobe with 25,2%. Conclusion: Five-year and longer-term survival rates in patients with early diagnosis and surgery in lung cancer reach 75%. Lung cancer deaths are usually caused by distant metastases. Therefore, early diagnosis and surgical planning of lung cancer is important.