This study investigates the use of cohesive devices in the corpus of Korean college students’ compositions. In particular, it attempts to provide a comprehensive analysis of the lexico-grammatical contexts in which cohesive referential devices are employed in argumentative essays. For this purpose, a Korean EFL corpus and a native speaker corpus were analyzed based on Gray’s (2010) coding scheme. The coding scheme included variables such as the place and unit of the antecedent, the grammatical role and place of demonstratives, and their preceding or following structures. The results of the analysis showed that Korean EFL learners and native writers were similar in that they tended to use demonstrative pronouns as a subject and demonstrative determiners as objects/complements. Besides this general tendency, non-prototypical uses of the determiners were observed. The learners’ corpus manifested an overuse of an extended antecedent which could reduce the clarity of meaning. The most frequent verb following demonstrative pronouns was the copula (i.e., be) in both corpora. Finally, the learners tended to use a much smaller number of abstract/shell nouns than their native speaker counterparts.