Muslim groups in Karlstad are rarely visible online. There is also no previous research about them. Through an interview-based mapping study, I want to research what activities take place in Muslim mosques in Karlstad. The aim of the study is to document and analyze Muslim activities. This study is included in a research project at Karlstad University: Karlstad’s mosque - negotiations on Islam in Värmland. It aims to illuminate Islam’s development in Värmland from various aspects. Religious change and religion collision are theoretical starting points for the study. The results of this study show that three congregations are active in Karlstad: Islamiska Kulturföreningen [sunni], Bosniska Islamiska Kulturföreningen [sunni] and Mahdi Al Montazar [shia]. They established their congregations since 1990s. They are dependent on their main organizations and do not cooperate with other Muslim associations. Members of the congregation are very important for the organization’s existence. The result indicates that the religious activities of groups are not affected by data-based communication. Different branches work for their own community and have different views about Islam. In a Christian society, these Muslim congregations try to adapt to the rules of majority society in different ways. They find new ways to practise their religion. Minority groups want to preserve their own cultural and religious traditions through the mosque building or association board. It will be a way to be included and recognized by the majority.