This paper aims to diagnose the information culture of the university administration. Although university administrative work is commonly associated with bureaucracy, it is a bureaucracy of people in which employees demonstrate a set of competitive group information behavior focused on knowledge sharing and information use in day-to-day tasks. A group of 345 respondents, representing office staff from three institutions in Poland, answered the survey related to information culture. The research framework included 16 information behaviors, grouped by four levels of information and knowledge management and four types of information culture. The results were examined using statistical packages to perform the Kruskal-Wallis H test, Spearman’s rank correlation coefficient, and ordinal/linear regression analysis. Professional Bureaucracy culture is the dominant characteristic of the information behavior of university administrations, but its functioning is supported by three parallel information cultures included in the research model. The main limitation of the study is that it covers only lower-level employees’ information practices. The applied scale, based on professional stratification within the university administration, is highly sensitive regarding different institutional contexts covered in the information culture diagnosis. To support the development of Professional Bureaucracy, it is necessary to support internal openness of behavior (socialization), internalization of knowledge, and external networking.