Five days later on October 22, 1828, the legislature expanded the county's border, incorporating more land south of the Red River.

After a number of local citizens were unwilling to sell land for a route for the Kansas City, Pittsburg, and Gulf Railroad in the late 1890s, the route was laid down through what would become the town of De Queen instead of Lockesburg.

[6] Known as "The Land of Lakes", "The Land of Fruits and Flowers" and "The Home of Friendly People," the county has five lakes within a 35-mile (56 km) radius, five rivers and mountain streams and forests.

22.80% of all households were made up of individuals, and 11.00% had someone living alone who was 65 years of age or older.

Over the past few election cycles, Sevier County has trended heavily towards the GOP.

The last Democrat (as of 2024) to carry this county was Arkansas native Bill Clinton in 1996.

Each township includes unincorporated areas; some may have incorporated cities or towns within part of their boundaries.

However, the United States census does list Arkansas population based on townships (sometimes referred to as "county subdivisions" or "minor civil divisions").

Each town or city is within one or more townships in an Arkansas county based on census maps and publications.