Bismarck
- County:
- Hot Spring County
- County Seat:
- No
- Area (mi²):
- 1.461
- State:
- Arkansas
Bismarck is a CDP located in Hot Spring County, Arkansas. Bismarck has a 2025 population of 158. Bismarck is currently growing at a rate of 7.48% annually but its population has decreased by -70.47% since the most recent census, which recorded a population of 535 in 2020.
The median age in Bismarck is 57.6 years: 0 years for males, and 0 years for females.