This paper finds strong and robust evidence of convergence in per capita income across the twenty-four Swedish counties, 1911–1993. In contrast to most previous studies on regional convergence this study adjusts incomes to account for regional differences in the cost of living. The main conclusion is that using adjusted incomes as opposed to non-adjusted incomes does not qualitatively change the results on convergence for the Swedish counties. However, a quantitative difference is that estimated speeds of convergence are higher and the standard deviation of the log of per capita income is lower when adjusted incomes are used, which is consistent with cross-country evidence.