The conditioning of dolphins to receive food from humans manifests as persistent begging behaviours. Such behaviours occur within Indo-Pacific bottlenose dolphins (Tursiops aduncus) in Whyalla, South Australia. Little is known about this population or the impacts of illegal food provisioning. Land and boat-based surveys were conducted to estimate population size, quantify the proportion of individuals engaging in begging, and assess social, behavioural, and spatial patterns. Individuals were classified as beggars if observed engaging in begging on more than one occasion, with ten dolphins meeting this criterion. Population abundance was estimated at 52 individuals (95% C.I. = 46–62) using a mark-recapture model. Social network analysis indicated no clear community structure (modularity = 0.05), although beggars associated more frequently with each other than with non-beggars. Beggars exhibited a substantially smaller 50% core utilisation area (0.45 km²) than non-beggars (4.54 km²), centred around the Whyalla marina, a focal site for begging. Behaviourally, beggars spent more time milling and less time foraging than non-beggars. These findings demonstrate that human-associated foraging is linked to changes in space use, behaviour, and associations, and inform management actions to mitigate impacts of illegal food provisioning on this population.