Hawkeye is a city in Fayette County, Iowa, United States. The population was 438 at the time of the 2020 census. Hawkeye is located at 42°56…Hawkeye is a city in Fayette County, Iowa, United States. The population was 438 at the time of the 2020 census. Hawkeye is located at 42°56′17″N 91°57′4″W / 42.93806°N 91.95111°W. According to the United States Census Bureau, the city has a total area of 0.67 square miles, all land.