To view data or to create maps and reports within Union County, you can access UC Atlas by clicking the map below. UC Atlas is our online interactive mapping tool.

The purpose of Union County GIS is to provide data containing geographic information about Union County.

You can download GIS data of Union County from this website. The purpose of the Union County GIS Access program is to provide data containing geographic information about Union County.

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ArcGIS Web Application

Union County commemorates the 250th Anniversary of the United States, inviting residents to get involved in honoring our nation's history and future. Read More

Explore Union County's interactive mapping tool for geographic data and map creation.

Union County Social Worker Receives Caught in the Act Award for Exceptional Commitment to Students and Families Register of Deeds Encourages Early Passport Application Ahead of Spring Break …

Union County has zoning authority for the unincorporated areas of the County and Hemby Bridge. Each property in these areas is zoned for certain allowable uses – such as commercial, residential, …

Jul 21, 2025 · Union County's Geographic Information Systems (GIS) & Mapping team has launched a new, easy-to-use online mapping and property lookup system, UC Atlas.