The sample included 301 respondents from the 50 states, the District of Columbia, local health organizations, and Native American tribes. The unit of analysis for the sample was the organization, meaning that no more than one survey was sent to each organization. The project took a census of state health departments, and sampled local and tribal health organizations. This sample of public health officials was sufficient to provide the type of data necessary to analyze the use of the HealthierUS and HP2010 programs.
The sample frame was constructed from multiple sources and resulted in three separate lists for state, local, and tribal organizations. A list of the 51 Directors of state health departments and the District of Columbia served as the primary contacts for the states. The list of approximately 2,700 members of the National Association of County and City Health Officials (NACCHO) served as the sample frame for the local officials, and the tribal officials were selected from a list of approximately 400 tribal health officials provided by the Indian Health Service (IHS).