Day County was one of the original counties of Oklahoma Territory. Day County was in the western part of the territory, along the Texas border. When it...

35°24′N 97°00′W / 35.4°N 97°W / 35.4; -97 The Territory of Oklahoma was an organized incorporated territory of the United States that existed from May 2...

The Oklahoma Panhandle (formerly called No Man's Land, the Public Land Strip, the Neutral Strip, or Cimarron Territory) is a salient in the extreme northwestern...

production. Garvin County came into existence on November 16, 1907, the day Oklahoma became a state. The territory within the present-day county had been a part...

Greer County, Texas, which included present-day Greer County along with neighboring areas. In 1896 it was designated as a county in Oklahoma Territory under...

Lincoln County is a county in eastern Central Oklahoma. As of the 2020 census, the population was 33,458. Its county seat is Chandler. Lincoln County is part...

Washita County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 10,924. Its county seat is New Cordell. The...

Osage County (/ˈoʊseɪdʒ/) is the largest county by area in the U.S. state of Oklahoma. Created in 1907 when Oklahoma was admitted as a state, the county is...

organized territories of the United States. The 1906 Oklahoma Enabling Act created the single state of Oklahoma by combining Oklahoma Territory and Indian...

Miller County, Arkansas Territory (eastern portion of the county) 1825–1907: Choctaw Nation of Indian Territory 1907–present: State of Oklahoma During...