National data from the Australian Early Development Census (AEDC) was used to describe the sociodemographic and developmental characteristics of a cohort of Australian children entering their first year of primary school in 2012. Results, together with sociodemographic variables were reported for two groups: children with and without reported hearing loss. Data on 285 232 children were analysed, with just over 1% of these children identified with hearing loss. Logistic regression analysis found that children with reported hearing loss had over double the odds than their hearing peers of being developmentally 'vulnerable' on one or more domains of the AEDC. Covariates of interest included Aboriginal and Torres Strait Islander heritage, as well as high rates of school absenteeism. Retrospective longitudinal research linking developmental outcomes with intervention efforts, such as newborn hearing screening, would be beneficial in future research.