The sky isn't falling. First, those stats are for the metro area, including Springfield and other nearby communities.

Second, there are only seven tracked metro areas in Oregon, which has relatively low violent crime rates. Some metro had to be most "dangerous," and most years it is going to be one of the three largest ones. 

Third, 2015 was an historically bad year for violent crime in Eugene and especially in Springfield. 2016 was better and 2017 is shaping up to be, too.