U.S. Congressional District Boundaries for Lake County

Boundaries for representatives to the U.S. House of Representatives, established by that body. The dataset is updated on a weekly basis by Lake County, Illinois.

Use Cases

• Map Congressional Districts using boundary files for geographic analysis.
• Analyze political boundary changes over time with weekly updates.
• Integrate district boundaries with demographic data for spatial modeling.

Strengths

• Updated weekly, ensuring current political boundaries.
• Provided by a government organization, Lake County, Illinois.
• Available in multiple formats including GEOJSON, KML, and CSV for flexibility.

Limitations

• Spatial coverage is limited to Lake County, Illinois, not the entire U.S.
• No sample data or column descriptions are available to assess structure.
• The total number of geographic features or rows is unknown.

Provenance

Source

Lake County, Illinois

Freshness

Updated weekly; last updated 2026-03-21.

Geography

Lake County, Illinois, U.S.