119th Congressional District Boundaries for the District of Columbia

A TIGER/Line shapefile from the U.S. Census Bureau containing the geographic boundaries for the single, non-voting delegate congressional district in the District of Columbia for the 119th Congress. The data reflects state-provided boundaries as of May 31, 2024, for the congressional session seated from January 2025 to December 2026.

Use Cases

• Map the single congressional district polygon for the District of Columbia to visualize its geographic extent.
• Perform spatial analysis on the district boundary, such as calculating its area or perimeter using GIS software.
• Join this shapefile's geometry with demographic data using the district's unique identifier for socio-economic studies.

Strengths

• Data originates from the authoritative U.S. Census Bureau Master Address File / TIGER (MAF/TIGER) System.
• Boundaries are current for the 119th Congress, reflecting state-provided updates as of May 31, 2024.
• The shapefile is part of a seamless national series designed to stand alone or be combined for national coverage.

Limitations

• The dataset contains only one congressional district record, limiting comparative analysis within the jurisdiction.
• In some states like Connecticut, Illinois, and New Hampshire, congressional districts may not cover the entire state, using a 'ZZ' placeholder code.
• The shapefile format requires specialized GIS software (e.g., QGIS, ArcGIS) for access and analysis, which may be a barrier.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

Extracted from the Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System.

Time Range

Boundaries are for the 119th Congress, seated from January 2025 through December 2026.

Freshness

Last updated on December 26, 2025.

Geography

District of Columbia, United States.