Total personal income in South Dakota rose by 4.8 percent in 2015 according to new figures released by the Bureau of Economic Analysis. Per capita personal income growth across the state was slightly lower at 4.2 percent.
The new data also shows that changes in per capita personal income varied dramatically across the state. Sully County experienced the largest drop in per capita personal income growth in the nation, a decline of 30.3 percent. Nearby Lyman County, which experienced a large decline of 22.8 percent in per capita personal income in 2014, made a substantial gain of 12.4 percent in 2015. Meanwhile, in Ziebach County per capita personal income fell by 22.7 percent after rising 45.0 percent in 2014.
Counties in southeastern South Dakota led the state in personal income growth in 2015. While most of the rest of the state experienced declines, these counties in southeastern South Dakota had double-digit increases in per capita personal income growth.
Counties in South Dakota’s metropolitan areas experienced less dramatic swings in personal income. In the Sioux Falls metropolitan area, for example, Minnehaha and Lincoln counties saw total increases of 7.3 and 10.3 percent in personal income. However, per capita personal income was slightly lower at 5.8 and 7.5 percent, respectively.
Union County, a part of the Sioux City metropolitan area in the heart of the Corn Belt, had personal income growth of 7.3 percent and an increase in per capita personal income of 8.1 percent.
In the western part of the state, Pennington, Meade and Custer counties, which make up the Rapid City metropolitan area, enjoyed personal income increases of 3.7, 2.1, and 1.9 percent. Per capita personal income also increased by 3.3, 1.8, and 1.9 percent respectively.
In Miner County, total personal income increased by 1.1 percent, but per capita personal income grew by 4.4 percent, making it the only county in the state to enjoy a decline in income inequality.