Internationally educated nurses (IENs) have become an integral part of the U.S. registered nurse workforce. To understand the U.S. RN workforce and conduct nurse workforce planning, it is fundamental to know the who, what, and where about IENs. Analysis of the 2004 National Sample Survey of Registered Nurses revealed demographic and employment characteristics of IENs practicing in the United States. The results can help employers, recruiters, and policymakers stay abreast of the changing profile of IENs in order to make informed decisions regarding the recruitment of lENs, and U.S. workforce planning and policy. More importantly, systematic actions such as developing tailored transitional programs should be implemented to better integrate and retain IENs who are playing an increasingly important role of caring for Americans.