Introduction: This is an observational study of emergency departments (ED) in California to identify factors related to the magnitude of ED utilization by patients with mental health needs.Methods: In 2010, an online survey was administered to ED directors in California querying them about factors related to the evaluation, timeliness to appropriate psychiatric treatment, and disposition of patients presenting to EDs with psychiatric complaints.Results: One hundred twenty-three ED directors from 42 of California’s 58 counties responded to the survey. The mean number of hours it took for psychiatric evaluations to be completed in the ED, from the time referral was placed to completed evaluation, was 5.97 hours (95% confidence interval [CI], 4.82–7.13). The average wait time for adult patients with a primary psychiatric diagnosis in the ED, once the decision to admit was made until placement into an inpatient psychiatric bed or transfer to an appropriate level of care, was 10.05 hours (95% CI, 8.69–11.52). The average wait time for pediatric patients with a primary psychiatric diagnosis was 12.97 hours (95% CI, 11.16–14.77). The most common reason reported for extended ED stays for this patient population was lack of inpatient psychiatric beds.Conclusion: The extraordinary wait times for patients with mental illness in the ED, as well as the lack of resources available to EDs for effectively treating and appropriately placing these patients, indicate the existence of a mental health system in California that prevents patients in acute need of psychiatric treatment from getting it at the right time, in the right place. [West J Emerg Med. 2012;13(1):51–56.]