Purpose: to describe aspects of functioning and disability related to hearing and sociodemographic factors of audiology service users. Methods: an exploratory study with a probabilistic sample comprising 152 participants who answered a socioeconomic and assistance questionnaire. The functioning and disability were analyzed by means of the International Classification of Functioning, Disability, and Health. Descriptive data analyses were conducted. Results: most users of the Hearing Health Care Service considered they had mild (41.2%) or moderate (34.2%) disability in b1560 Auditory perception, and mild (36%) and moderate (35.1%) disability in b230 Hearing Functions. In Activities and Participation, the users of the Hearing Health Care Service obtained better results in d330 Speaking (83.3%), d315 Communicating with and receiving nonverbal messages (65.8%), and d760 Family relationships (65.1%). The hearing aid was a facilitator in these subjects’ social interaction with the environment. Most of those attending the Audiology Outpatient Center did not have disabilities or difficulties in the activities and participation, and the environment was a facilitator. Conclusion: most of the participants attending the Hearing Health Care Service had a disability in auditory perception and hearing functions. However, such a disability was not a limiting factor in the performance of most of the activities and participations assessed.