These researchers investigated associations between residential mobility, risk of cardiovascular disease (CVD) and ethnicity in a cohort of 2,077,470 New Zealand residents aged ≥30 years. Encrypted National Health Index numbers were linked to individual level routinely recorded data. Binary logistic regression modelled the risk of CVD for the population stratified by ethnic group according to mover status, baseline deprivation and transitions between deprivation statuses. The analysis revealed variation between ethnic groups for the relationship between residential mobility and CVD. Furthermore, this ethnic variation was found to be strongly influenced by the inter-relationship between residential mobility and deprivation mobility.