Intra-population variation in life-history traits has rarely been examined in elasmobranchs, despite playing a key role in shaping population dynamics and informing management. We used a new vertebral band amplification technique (image stacking) and novel Bayesian models to test whether rates of somatic (increase in body length with age) and hepatosomatic growth (increase of energy stores in the liver with age) varied among three regions key to the early life-history of school sharks (Galeorhinus galeus) in New Zealand: the Canterbury Bight, Kaipara Harbour, and Tasman/Golden Bays. Rates of somatic and hepatosomatic growth showed little variation among regions. However, individuals from the Canterbury Bight were generally in better body condition compared to the other two regions. These findings provide preliminary insight into the degree of variation in juvenile growth within a population that uses multiple regions to rear its young.