THE UPPER GRAND LAGOON LAND BRIEF
Land in the
Gulf Barrier Islands and Coastal Marshes setting.
Upper Grand Lagoon CDP has 8.11 square miles of land in Bay County. Its Census reference point is in Gulf Barrier Islands and Coastal Marshes, within Southern Coastal Plain.
Low plains mingle with barrier islands, lagoons, marshes and inland lake districts. Coastal and inland settings vary substantially within this warm southeastern landscape.
Regional context: Southern Coastal Plain ↗ · Classification at the Census reference point
Upper Grand Lagoon and Bay County
Upper Grand Lagoon is associated with Bay County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Upper Grand Lagoon by land and water
The Census records 7.81 square miles of water within Upper Grand Lagoon, or 49.1% of its total area. It is 0.8 percentage points higher than the 48.3% recorded for Bay County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Upper Grand Lagoon CDP has 3.9 times the land area of nearby Lower Grand Lagoon CDP (2.09 square miles). These areas describe boundaries, not comparable property prices.

