http://www.adl.org/learn/extremism_i...sm_in_the_News
http://www.portlandtribune.com/news/...04368291538100
I don't think any area is without racial and ethnic incident. I only googled Portland because someone claimed that the pacific northwest didn't have issues like this.
The Southern Poverty Law Center tracks hate groups by state:
http://www.splcenter.org/intel/map/hate.jsp