Median annual earnings of security guards were $20,320 in May 2004. The middle 50 percent earned between $16,640 and $25,510. The lowest 10 percent earned less than $14,390, and the highest 10 percent earned more than $33,270. Median annual earnings in the industries employing the largest numbers of security guards in May 2004 were as follows:
| Elementary and secondary schools |
$25,030 |
| General medical and surgical hospitals |
24,750 |
| Local government |
23,690 |
| Traveler accommodation |
21,710 |
| Investigation and security services |
19,030 |
Gaming surveillance officers and gaming investigators had median annual earnings of $25,840 in May 2004. The middle 50 percent earned between $20,430 and $33,790. The lowest 10 percent earned less than $17,710, and the highest 10 percent earned more than $42,420.