Among ICU nurses, those working as Pediatric Intensive Care Unit (PICU) nurses tend to earn the highest salaries, with annual pay ranging from approximately $115,000 to $183,000. This higher compensation is due to the specialized skills required to care for critically ill children, the complexity of pediatric cases, and the high level of responsibility involved. Neonatal Intensive Care Unit (NICU) nurses also earn competitive salaries, typically between $97,000 and $155,000 annually, reflecting the specialized care for newborns. Overall, ICU nurses in specialized units such as PICU and Neonatal ICU generally receive higher pay compared to general ICU nurses, owing to the advanced expertise and critical nature of their work.