Martin County Flag

Martin County

State:
Florida
County Seat:
Stuart

Martin County's estimated 2026 population is 168,516 with a growth rate of 0.85% in the past year according to the most recent United States census data. Martin County is the 33rd largest county in Florida. The 2010 population was 146,912 and has seen a growth of 14.71% since that time.

168,516
Total Population
310
Population Density (mi²)
33
Population Rank (State)
1.4K 0.85%
Annual Population Growth

Martin County Population

Demographics

Economics and Income Statistics