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The incidence of pulmonary tuberculosis is in pulmonary tuberculosis patients who proved positive on the results of direct microscopic examination, Rapid Molecular Test, and culture (sputum and tissue). Factors that can affect the event of pulmonary tuberculosis are age, gender, and body mass index. This study was done to analyze the effect of age, sex, body mass index, and environment on the event of pulmonary tuberculosis in Banjarbaru City. This research used a cross-sectional study design. The research’s respondents were 82 patients with pulmonary tuberculosis with proportional random sampling. This study used secondary data on the Online Tuberculosis Information System on the Wasor TB account of the Banjarbaru City Health Office. Analyzing data using a chi-square test and logistic regression. Patients with productive age have a tendency to have bacteriologically confirmed pulmonary tuberculosis (p=0.011). Patients with male sex tended to have bacteriologically confirmed pulmonary tuberculosis (p=0.022). Patients with an abnormal body mass index tended to have bacteriologically confirmed pulmonary tuberculosis (p=0.001). Patients with environments in the Banjarbaru area have a tendency for bacteriologically confirmed pulmonary TB incidence (p=0.235). Logistic regression analyzing showed that age (p=0.007; Exp(B)=5.305), gender (p=0.016; Exp(B)=3.830), BMI (p=0.001; Exp(B)=6.769) and environment (p=0.623; Exp(B)=1.647) with 95% confidence level. There is the effect of age, sex, and BMI on the event of pulmonary tuberculosis in Banjarbaru City. There is no environmental influence on the incidence of pulmonary tuberculosis in Banjarbaru City. The BMI had the most effect on the event of pulmonary tuberculosis in Banjarbaru City.