Objectives: The aim of this study was to explore the relationship between socio-demographic characteristics and the level of complementary and supplementary person–organization fit (P–O fit). Material and Methods: The study sample was a group of 600 Polish workers, urban residents aged 19–65. Level of P–O fit was measured using the Subjective Person–Organization Fit Questionnaire by Czarnota-Bojarska. The binomial multivariate logistic regression was applied. The analyzes were performed separately for the men and women. Results: Socio-demographic variables explained small percentage of the outcome variability. Gender differences were found. In the case of men shift work decreased complementary and supplementary fit, while long working hours decreased complementary fit. In the women, age was a stimulant of a complementary fit, involuntary job losses predicted both complementary and supplementary misfit. Additionally, relational responsibilities increased probability of supplementary P–O fit in the men. Conclusions: Going beyond personality and competences as the factors affecting P–O fit will allow development of a more accurate prediction of P–O fit. Int J Occup Med Environ Health 2017;30(1):133–149