Cook County Topological Faces with Geocodes for 2023 Census

Topological face polygons from the U.S. Census Bureau's 2023 TIGER/Line database for Cook County, Illinois. This dataset contains the areal primitives used to build all Census geographic areas, each tagged with key geographic area codes for 2020 Census and annual survey data. The data is designed to be seamless and can be combined with other county files for national coverage.

Use Cases

• Dissolve face geometries on key geographic area codes like Census Tract Number or Block Group to reconstruct official Census geographic boundaries.
• Join face attributes such as County Fips Code or 5 digit zip code tabulation area code to demographic data for spatial analysis in Cook County.
• Analyze the topological relationships between faces, edges, and other primitives for cartographic quality assurance and network modeling.
• Build custom geographic aggregations for Metropolitan Statistical Areas or Congressional Districts using the unique topological face identifier (TFID).

Strengths

• Derived from the authoritative U.S. Census Bureau Master Address File/TIGER Database, ensuring national consistency and topological integrity.
• Contains key geographic area codes for all tabulation areas from the 2020 Census and annual surveys, enabling multi-scale analysis.
• Data is designed as a seamless national file with no overlaps or gaps, and this county extract can stand alone or be combined for broader coverage.

Limitations

• Specific data volume metrics like row count, column count, and file size are unknown, making it difficult to assess computational requirements.
• The dataset is a snapshot for 2023 and may not reflect real-time changes in geographic boundaries or codes after its creation.
• As a single-county extract, analysis for broader regions requires downloading and processing multiple county files.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

Extract of selected geographic and cartographic information from the Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database.

Time Range

2023

Freshness

Last updated on 2025-08-09, indicating recent maintenance.

Geography

Cook County, Illinois, United States