Social exclusion is a complex, multidimensional process which points to the persistence of a variety of deprivations in key dimensions of life, education among them. Working within this context, this paper studies determinants of exclusion in the educational dimension, specifically from its original degree (access), and seeks to evaluate whether they vary in relation to the socioeconomic conditions of the target population. To do this, logistic regression models were calculated using data from Argentina's Permanent Household Survey (PHS), in addition to information obtained from our own survey, performed in April of 2016 in three vulnerable communities of Bahía Blanca, Argentina.