[4] As of the 2020 United States census, there were 16,521 people, 6,279 households, and 4,318 families residing in the county.

22.40% of all households were made up of individuals, and 10.40% had someone living alone who was 65 years of age or older.

During the Secession Convention of 1861, Arkansas voted to leave the Union and join the Confederate States of America.

[14] Murphy would later be appointed Governor of Arkansas during Reconstruction under Abraham Lincoln's conciliatory policy.

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.