Most administrative assistants in the United States earn an hourly wage that varies based on their experience level and specific job responsibilities. Entry-level administrative assistants typically earn around $18.25 per hour, reflecting their initial skill set and limited experience. Junior administrative assistants tend to earn approximately $21.37 per hour as they gain more skills and responsibilities. Senior administrative assistants, who often have extensive experience and may oversee more complex tasks, earn about $24.44 per hour. These figures indicate a steady increase in pay corresponding to experience and expertise, highlighting the importance of skill development in this profession.