|— State of Rio Blanco —|
|Nickname(s): Flat River Land|
|Motto: Dum spiro spero (Latin)
While I breathe, I hope
|Named for||Sioux tribe|
|• Governor||Albert Ramsay (C)|
|• Lt. Governor||Tom Conley (C)|
|• Total||36,927 km2 (Script error sq mi)|
|Population (2014 census)||87,789|
|ISO 3166 code||RB-SX|
The State of Sioux (/suː/; Yuma German: Ziuks, /ˈziːʊks/), officially the State of Nadouessioux-Ñibraske (/ˈnæːdʊ.əˌs(j)uː nɪˈbræskiː/), is one of the 11 first-order subdivisions of Rio Blanco. It was the last state to be formed in Rio Blanco, as it was established in 1894, after being separated from Yuma.
It has a population of 87,789, making it the least populated state of Rio Blanco.
Sawatch is divided in 10 counties.