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…a net migration rate of zero throughout the forecast period.
Based on recent migration patterns, the state’s population is projected to increase, on average, 0.48
percent annually and grow to 3.238 million by 2040. Based on a zero migration assumption, the state’s
population is projected to increase, on average, 0.45 percent annually and grow to 3.217…
https://www.wichita.edu/about/wsunews/archive/images/Population%20forecast.pdf