People with learning disabilities have high dependency needs and high prevalence of physical, psychological and social morbidities. Some studies have shown that South Asian and white populations have a similar prevalence of learning disabilities and related psychological morbidity (McGrother et al, 2002), although other studies have shown an increased prevalence of severe levels of learning disabilities in the South Asian population (Emerson et al, 1997). The aim of this study was to compare stress levels and unmet service needs in informal carers of South Asian and white adults with learning disabilities.A sample of 742 informal carers was selected from the Leicestershire Learning Disability Register. Data on carers' and subjects' demographic details, stress levels and unmet service needs were analysed and compared using chi‐square tests and logistic regression analyses. Substantial differences were observed between the two groups. Carers of South Asian adults with learning disabilities reported significantly higher levels of care provision and unmet needs. Major stress was reported in 23% of carers. This was more common in carers with poor health, in those caring for younger adults, carers of adults with psychological symptoms, and in those with an expressed need for moral support or respite care.Stress is common among informal carers of adults with learning disabilities and inequalities, in reported care given and unmet needs, exist between carers of South Asian and white adults. Practitioners need to be aware of factors associated with stress when assessing carers in this population.