Brown County IL Topological Faces With Geocodes For 2023

Topological face polygons from the U.S. Census Bureau's TIGER/Line database for Brown County, Illinois, containing all geographic area codes used for 2020 Census and annual survey tabulation. Each face has a unique topological face identifier (TFID) and can be combined with other shapefiles to create a seamless national map.

Use Cases

• Dissolve face geometries on key geographic area codes like Census Tract Number or Block Group to build custom administrative boundaries.
• Analyze spatial relationships between different geographic codes, such as County Fips Code and 5 digit zip code tabulation area code, contained within each face polygon.
• Use the unique topological face identifier (TFID) to join this topological data with demographic or economic datasets from the Census Bureau.

Strengths

• Data originates from the authoritative U.S. Census Bureau Master Address File/TIGER Database, ensuring national topological consistency.
• Includes key geographic codes for all Census tabulation areas, enabling linkage to a wide range of demographic and statistical data.
• Shapefiles are designed to stand alone for county-level analysis or be combined to create a seamless national coverage without gaps.

Limitations

• The dataset is specific to a single county (Brown County, IL), limiting broader geographic analysis without combining many files.
• Specific technical details like row count, column count, and file size are unknown from the provided input.
• Data is from 2023 and may not reflect recent boundary changes or updates after its creation.

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 2025-08-11, though the underlying data is for the 2023 TIGER/Line release.

Geography

Brown County, Illinois, United States