This study investigates the relationship between knowledge management infrastructure and organizational capacity in the District One Municipality of Tehran. This research is descriptive in nature, conducted using a correlational approach, and is categorized as applied research in terms of its objective. A survey method was employed for data collection, utilizing a questionnaire as the research instrument. The questionnaire design was based on the standardized questionnaire by Moghimi (2013), as well as relevant literature and previous research. The statistical population of this study consists of 800 employees of the District One Municipality of Tehran. To determine the sample size, Morgan’s table and a simple random sampling method were used, resulting in a sample size estimate of 260 participants. The collected data were first analyzed using quantitative analysis through descriptive statistics, presented in tables and charts to examine the relationships between variables. Subsequently, for hypothesis testing, LISREL statistical software and structural equation modeling were applied. The findings of this study indicate a significant and positive impact of knowledge management implementation infrastructure on organizational change capacity.