Background. Vulnerability has a significant impact on health and well-being. Due to external stressors of lack of support, victimisation and minority stress, lesbian, gay and bisexual (LGB) young people are at risk of adverse health consequences. This research explored experiences of the LGB youth population (aged 13-25 years) in the mid-west region of Ireland. Methods. A mixed method approach was adopted for this research. An anonymous online survey (n = 167) was conducted followed by 3 focus groups (n = 13) and 10 interviews. Results. Results indicate the most vulnerable within this population are those who are isolated from LGB-specific support particularly in rural areas, whose work environment or local community is not LGB friendly and those still unsure of their sexual identity. The most vulnerable are currently not availing of potentially supportive services. Conclusion. In terms of public health, there is need to support the development of healthy and inclusive LGB-friendly environments in communities, school settings and workplaces. The promotion of such from a health promotion perspective would enhance young people's confidence in their sexual identity. Support and health services need to actively promote that they are inclusive of those who are LGB or who are unsure of their sexual identity.