[4] One of Giles County's local heroes is James McCallum, who served as grandmaster of the Tennessee Masons, a member of the Confederate Congress, and mayor.

[6] As of the 2020 United States census, there were 30,346 people, 11,904 households, and 7,807 families residing in the county.

25.70% of all households were made up of individuals, and 11.20% had someone living alone who was 65 years of age or older.

On November 15, 1995, Giles County received minor notoriety after a shooting occurred at Richland High School in the community of Lynnville.

Rouse was convicted of the shooting and sentenced to life in prison without parole.

Abernathy Field is a public use airport owned by Giles County and the City of Pulaski.

It is located three nautical miles (6 km) southwest of the central business district of Pulaski.

Although historically part of overwhelmingly Democratic and secessionist Middle Tennessee, Giles County has, like much of the rural white South, become overwhelmingly Republican since 2000 due to opposition to the Democratic Party's liberal views on social issues.