The following statistics are salary reports from the Bureau of Labor Statistics updated as of May 2013. Below is an estimate of average dental hygiene income in the District of Columbia by metropolitan area. The salaries listed are not necessarily based on a full 40 hour workweek.
Washington-Arlington-Alexandria, DC-VA-MD-WV
$87,510
Bethesda-Rockville-Frederick, MD Metropolitan Division
$83,540
Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Division
$88,430