Introduction: Nowadays, health & treatment services in every community are the foundation of people’s mental and bodily health and a prerequisite of sustainable development. However, this foundation must be based on balanced access to health & treatment sector facilities across diverse geographical areas. This research aims to measure the development level and rating of Zanjan Province townships in terms of access to health & treatment parameters.Methods: This study is an applied research according to its purpose, an analytical research based on its methodology, and a cross-sectional research according to its time horizon; which was carried out in Zanjan Province townships in 2011. The research statistical population covers all Zanjan Province townships. The statistics and data required to calculate the selected parameters were obtained from the province’s 2011almanac. Next, the development level of health & treatment sector in Zanjan Province townships’ was evaluated using numerical taxonomy method.Results: Research results showed that based on relative development level of health & treatment sector, Zanjan Township with a development level of 0.6542 was relatively developed, Mahneshan, Tarom, and Abhar Townships with development level of 0.7532, 0.7753, and 0.7759 were less developed respectively, and Khodabandeh Township with a development level of 0.9801 was the undeveloped township in the province. The Khoramdarreh and ejroud Townships were identified as incoherent regions and were removed from the study.Conclusions: the cities of Zanjan province are not similar in terms of health & treatment criteria and they have many differences.