THE UNION COUNTY LAND BRIEF
Land in the
Carolina Slate Belt setting.
Union County has 632.7 square miles of land in North Carolina. 3 mapped landscape regions meet across Union County: Carolina Slate Belt, Southern Outer Piedmont, Triassic Basins.
The Piedmont is a belt of irregular plains and hills between the Appalachians and the coastal plain. A complex mixture of older rocks underlies its pine and hardwood woodland landscapes.
Regional context: Piedmont ↗ · Regional mapping across the county footprint
Where the landscape changes
Union County intersects 3 mapped regional units. The largest mapped shares are:
- Carolina Slate Belt91.2%
- Southern Outer Piedmont7.8%
- Triassic Basins1%
Finding your parcel within Union County
The atlas lists 16 cities, towns, townships, and Census communities associated with Union County, including Monroe, Fairview, Unionville. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Union County by land and water
The Census records 6.91 square miles of water within Union County, or 1.1% of its total area. That share is close to Union County’s 1.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Union County has 19.2 times the land area of nearby Monroe city (32.9 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Anson County, Cabarrus County, Mecklenburg County, Stanly County within North Carolina. A tract near one of these lines should be matched to the county identifier on its own records.

