
Lower Grand Lagoon
- County:
- Bay County
- County Seat:
- No
- Area (mi²):
- 2.091
- State:
- Florida
Lower Grand Lagoon is a CDP located in Bay County, Florida. Lower Grand Lagoon has a 2025 population of 4,946. Lower Grand Lagoon is currently growing at a rate of 1.46% annually and its population has increased by 5.23% since the most recent census, which recorded a population of 4,700 in 2020.
The average household income in Lower Grand Lagoon is $99,295 with a poverty rate of 13.25%. The median age in Lower Grand Lagoon is 54 years: 54.8 years for males, and 52.8 years for females.