THE ESSEX COUNTY LAND BRIEF
Land in the
Gulf of Maine Coastal Lowland setting.
Essex County has 492.5 square miles of land in Massachusetts. 3 mapped landscape regions meet across Essex County: Gulf of Maine Coastal Lowland, Gulf of Maine Coastal Plain, Boston Basin.
Irregular plains and low hills form a coastal transition with glacial lakes and oak-pine woodland. This northeastern landscape is gentler than the mountainous country farther inland.
Regional context: Northeastern Coastal Zone ↗ · Regional mapping across the county footprint
Where the landscape changes
Essex County intersects 3 mapped regional units. The largest mapped shares are:
- Gulf of Maine Coastal Lowland56.5%
- Gulf of Maine Coastal Plain28.4%
- Boston Basin15.1%
Finding your parcel within Essex County
The atlas lists 48 cities, towns, townships, and Census communities associated with Essex County, including Haverhill, Ipswich, Andover. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Essex County by land and water
The Census records 336 square miles of water within Essex County, or 40.6% of its total area. That share is close to Essex County’s 40.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Essex County has 34.7 times the land area of nearby Hamilton town (14.2 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Middlesex County, Suffolk County within Massachusetts. A tract near one of these lines should be matched to the county identifier on its own records.

