The Snohomish County medical examiner's office counted two more victims Monday, but said they have not yet been officially identified. The sheriff's office removed two names from its missing list, which had stood at four.
The March 22 landslide tore through about three dozen homes. Oso is about 55 miles northeast of Seattle.
The search for bodies continues as President Barack Obama prepares to visit the site Tuesday and meet with victims' families and first responders. Obama is making the brief stop as he heads to Asia for an eight-day trip to Japan, South Korea, Malaysia and the Philippines.