I don't believe Oregon reports result by precinct. Last I checked Oregon votes by mail in presidential elections.
By mail? In 2012? That's surprising.
Voting by mail is increasingly common nationwide, and is done by the majority of voters in the West. Oregon and Washington operate entirely by mail.
Once again Alcon provides a comprehensive perspective...
Honestly, I would love to have some of the precinct maps of 2012 for the PacNW like Alcon provided in '08, however it does take quite a bit of effort to create considering many counties require purchasing the data directly from the county and there are few with the time, money, and bandwidth to compile such maps.
However there is always the hope that some young entrepreneur with time and money on their hands could create could create such a map for both Washington and Oregon.
Thanks Alcon for the '08 NW precinct maps.... and wish you the best with your current academic pursuits!