What factors are driving the Midwest's accelerating brain drain?
Core argument: Illinois high-earner out-migration surged +54K annually (2014–15 to 2023–24) while low-earner departures fell -104K, driving regional brain drain toward higher-income.
Take Illinois, the most populous Midwestern state: my analysis of Census Bureau microdata shows that between 2014–15 and 2023–24, annual out-migration by households earning under $50K fell by 104K. Out-migration by Illinois households earning over $200K rose by 54K over the same period. Across the region, the trend along educational lines is the same: the bachelor’s-or-higher share of adult out-migrants is now 57%, up from around 40% in 2005. It’s the most educated and highest-earning that are still leaving in droves.

