List of counties in Colorado

Columns: County | Territory or State | Created | Superseded | History
Peketon County | Territory of Kansas | 18590207 1859-02-07 | 18610129 1861-01-29 | Created in 1859 , but never organized . Reverted to unorganized territory when Kansas joined the Union in 1861 | Arrappahoe County | Territory of Jefferson | 18591128 1859-11-28 | 18610228 1861-02-28 | One of the 12 counties created by the extralegal Territory of Jefferson in 1859 | Cheyenne County | Territory of Jefferson | 18591128 1859-11-28 | 18610228 1861-02-28 | One of the 12 counties created by the extralegal Territory of Jefferson in 1859 | El Paso County | Territory of Jefferson | 18591128 1859-11-28 | 18610228 1861-02-28 | One of the 12 counties created by the extralegal Territory of Jefferson in 1859 | Fountain County | Territory of Jefferson | 18591128 1859-11-28 | 18610228 1861-02-28 | One of the 12 counties created by the extralegal Territory of Jefferson in 1859 | Heele County | Territory of Jefferson | 18591128 1859-11-28 | 18610228 1861-02-28 | One of the 12 counties created by the extralegal Territory of Jefferson in 1859

Example questions:
In which territory or state is the former county that was created in 1852 and organized in 1856 ? | In which territory or state is the former county that had the population of 32,937 in 2010 ? | In which territory or state is the former county that was named after a California senator ? | In which territory or state is the former county that the most populous county in its territory or state ?

Answers:
Territory of Utah | Territory of New Mexico | Territory of Kansas | Territory of Utah