where is pittsfield illinois
Pittsfield is a city in Pike County, Illinois, United States. The population was 4,211 at the 2000 census. The city was named after Pittsfield, Massachusetts. It is the county seat of Pike County. It was home to John Hay, Lincoln's personal secretary, ambassador to England under President William McKinley, later Secretary of State for Theodore Roosevelt and creator of the Open Door Policy in China.