The median annual wage of Postal Service workers was $53,090 in May 2010. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $38,490, and the top 10 percent earned more than $54,620.
Median annual wages for Postal Service occupations in May 2010 were the following:
Most career Postal Service workers work full time. However, overtime may be required for workers, particularly during the holiday season. Because mail is delivered 6 days a week, many Postal Service workers must work on Saturdays.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition