Granby is a town in Hartford County, Connecticut, United States. The population was 11,282 at the 2010 census. The town center is defined as a census-designated place known as Salmon Brook. Other areas in town include North Granby and West Granby. Granby is a rural town with a suburban center. The outskirts of town are either very wooded and mountainous or consist of farms. Granby was part of Simsbury until 1786, when it became independent.