The number of working age (18-64) nursing home (NH) residents with a mental diagnosis at admission rose from 70,600 in 1997 to 97,200 in 1999 ( Jones, 2002). Utilizing the Behavioral Model for Vulnerable Populations (Gelberg, Andersen, & Leak, 2000), I examined factors associated with NH admittance in a sample of working age residents with mental illness. I conducted a qualitative analysis of 20 residents' healthcare and social experiences leading to NH admittance. Data came from semi-structured interviews, medical records, and clinicians. Results showed that homelessness, drug abuse, and low functional status were perceived by residents to play a role in their admittance. Overall, participants associated disadvantaged social and healthcare experiences with current NH admittance.