Introduction: Marginalized populations experience health inequities and are often underserved within existing health systems. Australian marginalized populations and their use of complementary medicine, including acupuncture, lack investigation. We have collected information on the health-seeking behaviors of marginalized individuals who utilize an acupuncture service within a community-based integrative health setting. Methods: A secondary analysis of pre-existing data involving the linking of three datasets. Information was collected across four domains: health characteristics, socio-demographics, health services utilization, and vulnerability markers. Bivariate analysis using Fisher's exact and chi-square tests additional to logistic regression analysis were conducted to determine the characteristics of the study population. All data once analyzed were then presented as a cumulative statistic. Results: Study participants (n = 42) included 28% of individuals with reported histories of homelessness (n = 12) and 32% with a history of psychological trauma (n = 13). Eighty-three percent (n = 31) of the population sought acupuncture to manage pain and 91% (n = 36) for musculoskeletal conditions. Sixty-three percent (n = 24) reported a mental health diagnosis, most commonly depression (n = 18). Participants were most likely to engage with three other health services within the study setting, in addition to acupuncture. Participants with an illicit substance abuse problem were 12 times more likely to seek a greater number of acupuncture treatments, and individuals with trauma histories were twice as likely to attend the acupuncture clinic eight or more times. Discussion: Our study findings suggest a robust level of engagement with acupuncture treatment among the target population and a willingness to engage with integrative health services when barriers to uptake such as accessibility and affordability are removed. Findings support current evidence pertaining to acupuncture's use as an adjunct to managing pain in marginalized populations as well as a perceived acceptability and feasibility of the integration of acupuncture within conventional health settings. There is the further observation that acupuncture in a group setting is suitable for a marginalized population and an interest in commitment to treatment among individuals with substance abuse problems.