Research on internal migration can be divided into two directions: identifying its determinants and/or assessing its consequences. Migration is bidirectional. i.e. can be affected by and can affect socio-economic disparities within a country. On one hand, the determinants of internal migration can be numerous and their analysis is very complex and, on the other hand, migration should have, at least theoretically, some influence on income and unemployment convergence, i.e. disparities reduction. The objectives of this paper are to evaluate the level of internal migration in Romania using county data and to assess its impact on convergence, using various methods, both statistical and econometric. The main results point out at: very low levels of migration and relative small differences among them, no influence of migration on GDP divergence and extremely low on unemployment convergence.