U.S. Bureau of Labor Statistics, May 2006

Median annual earnings for wage and salary graphic designers were $39,900 in May 2006. The middle 50 percent earned between $30,600 and $53,310. The lowest 10 percent earned less than $24,120, and the highest 10 percent earned more than $69,730. May 2006 median annual earnings in the industries employing the largest numbers of graphic designers were:

Specialized design services $43,410
Advertising and related services 41,600
Newspaper, periodical, book, and directory publishers 34,290
Printing and related support activities 33,930
Newspaper publishers 31,540

Also see 2008 AIGA and Aquent Salary Survey.