The Government of Indonesia (GoI) has stipulated several laws/regulations and set up institutions related to climate change mitigation and adaptation. Implementing agencies at the national level (several ministries and agencies) have provided open access information about potential disaster areas with maps, such as: a map of potential flood areas and landslide areas. The lowest level of map is at the kabupaten level. The mitigation effort is more intensive due to the President of Indonesia’s commitment to reduce greenhouse gas emissions by 26% through domestic efforts and by as much as 41% when international assistance is received in 2020. The study’s focus on climate change vulnerability assessment and mapping used data generated by the Community-Based Monitoring System (CBMS) in Kota Pekalongan and other available data. Knowing the impact of one type of climate hazard on socioeconomic aspects of human life raised concerns on what could be found in Kota Pekalongan. Thus, the study aimed to provide relevant information related to which groups are most vulnerable to climate change, the levels of existing impact and the potential strategies that can be used to mitigate that impact.