This study investigates the relationship between green space in the living environment and physician-assessed morbidity. It finds that living in areas with more green space is associated with lower annual prevalence rates of certain disease clusters, particularly anxiety disorders and depression. The relationship is strongest for children and people with lower socioeconomic status, and is most pronounced in slightly urban areas. The study uses data from electronic medical records of 195 general practitioners in 96 Dutch practices, covering a population of 345,143 people. Environmental data on green space were derived from a national land cover classification database. Multilevel logistic regression analyses were performed, controlling for demographic and socioeconomic characteristics. The study highlights the importance of green space close to home for children and lower socioeconomic groups. It also suggests that green space may have beneficial effects on mental health, possibly through stress reduction and improved air quality. The study is the first to investigate the relationship between green space and physician-assessed morbidity, using a large, representative dataset. It contributes to the evidence that green space can help combat major public health threats in Western societies. The study also notes that the relationship between green space and health may be influenced by factors such as physical activity and social contact. However, the study acknowledges limitations, including the lack of information on exposure time and potential selection effects. Overall, the study underscores the importance of green space in promoting health and well-being.This study investigates the relationship between green space in the living environment and physician-assessed morbidity. It finds that living in areas with more green space is associated with lower annual prevalence rates of certain disease clusters, particularly anxiety disorders and depression. The relationship is strongest for children and people with lower socioeconomic status, and is most pronounced in slightly urban areas. The study uses data from electronic medical records of 195 general practitioners in 96 Dutch practices, covering a population of 345,143 people. Environmental data on green space were derived from a national land cover classification database. Multilevel logistic regression analyses were performed, controlling for demographic and socioeconomic characteristics. The study highlights the importance of green space close to home for children and lower socioeconomic groups. It also suggests that green space may have beneficial effects on mental health, possibly through stress reduction and improved air quality. The study is the first to investigate the relationship between green space and physician-assessed morbidity, using a large, representative dataset. It contributes to the evidence that green space can help combat major public health threats in Western societies. The study also notes that the relationship between green space and health may be influenced by factors such as physical activity and social contact. However, the study acknowledges limitations, including the lack of information on exposure time and potential selection effects. Overall, the study underscores the importance of green space in promoting health and well-being.