Median hourly earnings of millwrights were $21.02 in May 2004. The middle 50 percent earned between $16.53 and $27.07. The lowest 10 percent earned less than $13.02, and the highest 10 percent earned more than $32.17. Earnings vary by industry and geographic location. Median hourly earnings in the industries employing the largest numbers of millwrights in May 2004 were as follows:
|Motor vehicle parts manufacturing
|Building equipment contractors
About 54 percent of millwrights belong to labor unions, one of the highest rates of membership in the economy.