The present report summarizes duck stamp sales by State and county for sales years 1966-67 through 1975-76, repeating 5 years presented in the first report. The term "sales year" is used because the Federal fiscal year was changed to 1 October through 30 September in 1976. The following 10-year summary of duck stamp sales by county, State, flyway, and the United States is presented as a source of data for waterfowl-related programs. According to their location, counties in Colorado, Montana, New Mexico, and Wyoming appear in either the Central or Pacific flyways.