
Grand Isle County
- State:
- Vermont
- County Seat:
- North Hero
Grand Isle County's estimated 2025 population is 7,421 with a growth rate of -0.31% in the past year according to the most recent United States census data. Grand Isle County is the 13th largest county in Vermont. The 2010 population was 6,948 and has seen a growth of 6.81% since that time.