This paper analyzes the spatial structure and dynamics of regional income inequality across Türkiye’s 81 provinces from 2004 to 2023, combining inequality decomposition, spatial econometrics, and distributional dynamics. It finds that inequality is dominated by between-region disparities, that absolute beta convergence is slow enough to imply long-lived disparities, and that spatial Markov chain analysis reveals persistent income rankings and spatially conditioned mobility traps.