The unemployment rate in the Grand Forks metro area (all of Grand Forks and Polk counties) was 4.1 percent in August, up from 3.8 percent the month before and 3.3 percent in August 2007, according to Job Service North Dakota. Advertisement: TIM SHEA'S NURSERY & LANDSCAPING FALL TREE SALE! SAVE 20% On Ash, Maple, Linden, Crab, & More! 100% Winter Warranty! Remember: Fall is a great ...