It stimulated greater prosperity directly linking Dillon County to the national network of railroads.

As of the 2020 United States census, there were 28,292 people, 11,029 households, and 7,016 families residing in the county.

At the 2010 census, there were 32,062 people, 11,923 households, and 8,342 families living in the county.

There were 13,742 housing units at an average density of 33.9 per square mile (13.1/km2).

[16] At the 2000 census,[17] there were 30,722 people, 11,199 households, and 8,063 families living in the county.

25.10% of all households were made up of individuals, and 9.90% had someone living alone who was 65 years of age or older.

[19] In chained 2017 dollars, the real GDP was $742.1 million (about $27,808 per capita).

[21] Food Lion, Harbor Freight Tools, McLeod Health, Perdue Farms, and Walmart comprise some of the largest employers in the county.