Jefferson and Crook County both saw their rates drop - Jefferson County to 10.7 percent and Crook County to 12.5 percent.
But Deschutes County remained flat at 10 percent.
Regional Economist Damon Runberg.
"It kind of looks like some of the seasonal hiring we expected now occurred earlier in the season. We were seeing strong seasonally adjusted gains in the early spring and now we're seeing a regression. I don't think it's a trend."
In May, Jefferson County actually saw the largest drop in unemployment in all of Oregon's 36 counties. The rate dropped a half a percent from April.