With the virus spreading rapidly, Gov. Kate Brown also announced updates to the county risk levels: No county is classified as an extreme risk.
Johnson & Johnson manufacturing error will short-change Oregon by 200,000-300,000 doses, but officials widen the expansion.
The milestone comes as Oregon speeds up its vaccination expansion to include more demographic groups, with many frontline workers and people aged 16 to 44 with underlying conditions soon eligible.
Migrant workers, frontline workers and multi-generational households are among the groups that will become eligible for vaccination sooner than expected.
Residents are finding it easier to drive to the Oregon State Fairgrounds and get vaccinated than to secure an appointment in Portland because of an uneven allocation of doses among counties.
But the general population may still face delays, as Oregon officials plan to keep allocating doses in a targeted way to reach vulnerable groups.