Scott County is a county located in the U.S. state of Arkansas. As of the 2020 census, the population was 9,836. The county seat is Waldron. Scott County is Arkansas' 28th county, formed on November 5, 1833, and named for Andrew Scott, a justice of the Supreme Court of the Arkansas Territory. It is an alcohol-prohibited or dry county.

Waldron is a city in Scott County, Arkansas, United States. Its population was 3,386 at the 2020 census. The city is the county seat of Scott County.