The development and validation of the 29-item Understanding Mental Health Scale (UMHS) is described. This new questionnaire measures college students' understanding of mental health issues. The authors also identified significant demographic differences in students' understanding of mental health issues. A principal factor analysis revealed a 2-factor solution. The dimensions were labeled Risk-Factor Awareness and External Support Awareness. Findings suggest the UMHS demonstrates adequate reliability and validity. Implications for college counseling are discussed.