Rye is a Statutory Town in Pueblo County, Colorado, United States. It is part of the Pueblo, Colorado Metropolitan Statistical Area. The population was 153 at the 2010 census. A post office called Rye …Rye is a Statutory Town in Pueblo County, Colorado, United States. It is part of the Pueblo, Colorado Metropolitan Statistical Area. The population was 153 at the 2010 census. A post office called Rye has been in operation since 1881. Some say the community was named for the wild rye native to the area, while others believe the place is named for rye whiskey.