[2] It is a sparsely populated rural county in western Wyoming, along the Green River.

[3] Before settlement, the western Wyoming mountains were traversed and harvested by fur trappers and traders.

[4] Today the county celebrates its fur trade heritage with the Museum of the Mountain Man in Pinedale.

In the early 1900s the majority of the population in what is today Sublette County were first generation immigrants from England and Germany.

The German immigrants in the county were not anti-British, and most of them were outspoken about England being their favorite foreign country other than Germany, however they did support neutrality and want America to stay out of the war.

Since it was created in 1921, the solitary Democrat to carry the county was Franklin D. Roosevelt, who won a majority against Herbert Hoover in 1932 and a twenty-nine vote plurality against Alf Landon four years later.

Since 1968 no Democrat has reached twenty-nine percent of Sublette County's ballots, and the only occasions a Republican has failed to pass seventy percent were when Ross Perot took substantial numbers of votes in 1992 and 1996.

In 2011, Sublette County residents petitioned voters to approve an increase in this number to five as allowed under Wyoming law.