This study describes moralityin high school students ofthe Province of Concepción, Chile. The morality was measured through acceptance of questionable moral behaviors and moral judgment development. Relationships between moralityand 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 sexualityand lower in personal and legal morality. Less than halfofthe subjects submitted valid moral judgments. No significant correlations were found between moral permissiveness and moral judgment development. Significant differences ofmoralitywere found according to sexand religion. Inverse relationships were found between permissivity and family functioning. Also, direct relationships were found between academic achievement and moral judgment.Se presenta la moralidad de estudiantes de enseñanza media de la Provincia de Concepción, Chile, medida por la aceptación de conductas morales cuestionables yel nivel de desarrollo del juicio moral. Se presentan relaciones entre moralidad ycaracterísticas del joven ysufamilia. Para ello, se aplicóuna encuesta de carácter social a una muestra representativa de 546 estudiantes. Los resultados muestran una baja permisividad moral, más alta en sexualidad ymás baja en moralidad personal ylegal. 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 yreligión. Se detectaron relaciones inversas entre permisividad y funcionamiento familiar, y directas, entre rendimiento escolar y juicio moral.