Denominational Differentiation and Religiosity Among the Hungarian Minority of Transylvania: Evidence from the European Values Study

The Hungarian minority of Transylvania comprises four historically received denominations—Roman Catholic, Reformed, Unitarian, and Lutheran—whose institutional profiles differ markedly despite their shared function as carriers of minority cultural identity. Using the European Values Study 2017 Romanian Hungarian minority oversample (GESIS ZA7550; N=1106), this article presents the first regression-based analysis of intra-community denominational variation in religiosity in this dataset. Four binary logistic regression models test whether denomination independently predicts church attendance, confidence in church, subjective importance of religion, and self-described religiosity type (institutional versus personalised), net of sociodemographic controls. Catholics attend services significantly more frequently than Reformed members, while Reformed members express higher confidence in their church—a practice–trust reversal explicable by the distinction between canonical obligation and ethnic embeddedness. Subjective religious importance does not vary by denomination, consistent with an identity-protection mechanism operating uniformly across confessions. Denomination does not independently predict institutional versus personalised religiosity type once sociodemographic controls are applied, with age emerging as the dominant axis of variation on this dimension. The findings engage with Davie’s believing/belonging/behaving framework and the debate on whether denominational cleavage or the secular–religious divide constitutes the primary axis of religious differentiation in contemporary Europe.