According to PayScale.com's salary questionnaire, in the United States, assistant principals earn an average of $67,000 per year as of 2014. The range is between $47,000 and $96,000 per year. Factors affecting pay include location and career duration.
Most assistant principals receive medical coverage, and many also receive dental coverage. Women are a small majority in this profession, making up 56 percent of assistant principals. Assistant principals hold a management-level position in schools, generally in middle and high schools, although there are some at the elementary-school level as well. The next step in a career path for an assistant principal is typically to become an elementary or middle school principal or headmaster, a position that reports a median income $6,000 higher than that of an assistant principal as of 2014.