Diarrhea is a condition in which an individual experiences bowel movements with a frequency of 3 times or more per day in the consistency of stool in liquid form. In addition, it can occur from person to person as a result of poor personal hygiene and environment. This research was conducted using quantitative methods and using a case series design. The population in this study amounted to 2533 toddlers with 56 samples. Data were collected using the case series method on 56 toddlers. Primary data were obtained through questionnaire interviews and recording the distribution of diarrhea incidence among toddlers with Google Maps and ArcGIS. Based on the results of the study, it was found that in the spatial analysis the incidence of toddler diarrhea was mostly spread in RW 01, as many as 36 respondents (64.3%) had a good household waste management system, as many as 41 respondents (73.2%) had a waste water management system. good, as many as 30 respondents (53.6%) had bad hand washing behavior, 37 respondents (66.1%) had poor knowledge, and as many as 37 respondents (66.1%) had higher education status. It was expected to Public Health Center to re-evaluate environmental health infrastructure recommendations.