Des Arc
- County:
- Prairie County
- County Seat:
- Yes
- Area (mi²):
- 2.102
- State:
- Arkansas
Des Arc is a city located in Prairie County, Arkansas. Des Arc has a 2026 population of 1,841. It is also the county seat of Prairie County. Des Arc is currently declining at a rate of -0.81% annually and its population has decreased by -2.95% since the most recent census, which recorded a population of 1,897 in 2020.