Between July 2016 and July 2017, Newcastle lost 3.6 percent of its population, or 125 residents, according to a population report from the Economic Analysis Division for the State of Wyoming released in May. During the same period, Weston County’s population fell by 3.8 percent, or 271 people, and Upton lost 44 people, or 4 percent of its population.
Only one community in the state had a larger population decrease than Newcastle and that was Gillette, which lost 1,730 people, or 5.4 percent of its population. The state lost 5,595 people, largely attributed to the downturn in the energy industry. Although that amounted to less than 1 percent of the population, it was still the largest decline in state population since 1989.
Between April 2010 and July 2017, according to the report, Newcastle’s population decreases by 4.1 percent, or 144 people. During the same period, Upton’s population declined by 3.6 percent, or 40 individuals, and Weston County’s dropped by 3.9 percent, or 281 people.