THE SOUTHEASTERN CONNECTICUT PLANNING REGION LAND BRIEF
Land in the
Southern New England Coastal Plains and Hills setting.
Southeastern Connecticut Planning Region has 598.1 square miles of land in Connecticut. 2 mapped landscape regions meet across Southeastern Connecticut Planning Region: Southern New England Coastal Plains and Hills, Long Island Sound Coastal Lowland.
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
Southeastern Connecticut Planning Region intersects 2 mapped regional units. The largest mapped shares are:
- Southern New England Coastal Plains and Hills74.6%
- Long Island Sound Coastal Lowland25.4%
Finding your parcel within Southeastern Connecticut Planning Region
The atlas lists 39 cities, towns, townships, and Census communities associated with Southeastern Connecticut Planning Region, including North Stonington, Lebanon, Colchester. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Southeastern Connecticut Planning Region by land and water
The Census records 83.6 square miles of water within Southeastern Connecticut Planning Region, or 12.3% of its total area. That share is close to Southeastern Connecticut Planning Region’s 12.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Southeastern Connecticut Planning Region has 140.6 times the land area of nearby Oxoboxo River CDP (4.26 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Capitol Planning Region, Lower Connecticut River Valley Planning Region, Northeastern Connecticut Planning Region within Connecticut. A tract near one of these lines should be matched to the county identifier on its own records.

