The purpose of this study is to determine what patient characteristics and what attributes of emergency service are most related to Emergency Department patients' satisfaction with emergency care. The data for this study was obtained from a questionnaire given to patients as they were discharged form the Emergency Department of Veterans General Hospital. The relationship between the 12 independent variables and the dependent variable was tested using ANOVA. Multiple linear regression was performed to determine if a combination of two or more of the independent variables would explain satisfaction level. The findings showed that the average patient's satisfaction score was 3.03, with a standard deviation of 0.29. The average satisfaction level was between "satisfied" and "very satisfied". There was a significant relationship between the ED sections, degree of illness, age, education, marital status, insurance, family income and patient's expectations and the satisfaction with emergency service. There was no relationship found between the gender, status, return visits and address, and the satisfaction level. Multiple linear regression was able to define 24.4% of variance in the dependent variable satisfaction. It also was able to define 18.7% variance in the dependent variable of patient's expectations.