
Mississippi County
- State:
- Arkansas
- County Seat:
- Blytheville
Mississippi County's estimated 2025 population is 38,263 with a growth rate of -0.52% in the past year according to the most recent United States census data. Mississippi County is the 20th largest county in Arkansas. The 2010 population was 46,350 and has seen a growth of -17.45% since that time.