Bay County Flag

Bay County

State:
Michigan
County Seat:
Bay City

Bay County's estimated 2026 population is 101,814 with a growth rate of -0.3% in the past year according to the most recent United States census data. Bay County is the 20th largest county in Michigan. The 2010 population was 107,678 and has seen a growth of -5.45% since that time.

101,814
Total Population
230
Population Density (mi²)
20
Population Rank (State)
-309 -0.3%
Annual Population Growth

Bay County Population

Demographics

Economics and Income Statistics