Se presenta la moralidad de estudiantes de enseñanza media de la Provincia de Concepción, Chile, medida por la aceptación de conductas morales cuestionables y el nivel de desarrollo del juicio moral. Se presentan relaciones entre moralidad y características del joven y su familia. Para ello, se aplicó una encuesta de carácter social a una muestra representativa de 546 estudiantes. Los resultados muestran una baja permisividad moral, más alta en sexualidad y más baja en moralidad personal y legal. Menos de la mitad de los jóvenes emitieron juicios morales válidos. No se encontraron correlaciones significativas entre permisividad moral y juicio moral. Hubo diferencias significativas de moralidad según sexo y religión. Se detectaron relaciones inversas entre permisividad y funcionamiento familiar, y directas, entre rendimiento escolar y juicio moral.This study describes morality in high school students of the Province of Concepción, Chile. The morality was measured through acceptance of questionable moral behaviors and moral judgment development. Relationships between morality and the characteristics of youths an their families are also presented. A social survey was applied to a representative sample of 546 high school students. The results show low moral permissiveness, higher regarding sexuality and lower in personal and legal morality. Less than half of the subjects submitted valid moral judgments. No significant correlations were found between moral permissiveness and moral judgment development. Significant differences of morality were found according to sex and religion. Inverse relationships were found between permissivity and family functioning. Also, direct relationships were found between academic achievement and moral judgment.