Jefferson County Flag

Jefferson County

State:
Arkansas
County Seat:
Pine Bluff

Jefferson County's 2026 population is estimated at 63,938, reflecting a 0.21% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Jefferson County is the 12th largest county in Arkansas. The 2010 population was 77,332 and has grown -17.32% since 2010.

63,938
Total Population
73
Population Density (mi²)
12
Population Rank (State)
133 0.21%
Annual Population Growth

Jefferson County Population

Demographics

Economics and Income Statistics