Logan County Illinois Topological Faces With Geocodes

U.S. Census Bureau TIGER/Line shapefiles provide topological polygon primitives for Logan County, Illinois. Each face includes unique identifiers and key geographic area codes for building geometries of Census tabulation areas. The data is extracted from the national Master Address File / Topologically Integrated Geographic Encoding and Referencing (MTS) system.

Use Cases

• Dissolve face geometries using key geographic area codes to build custom Census geography boundaries for Logan County.
• Analyze the spatial distribution of topological primitives using unique topological face identifier (TFID) values.
• Integrate face attributes like FIPS place code or county subdivision FIPS code for demographic or economic analysis in Logan County.

Strengths

• Data originates from the U.S. Census Bureau's authoritative Master Address File / TIGER (MTS) system, ensuring national consistency.
• Topological Faces shapefile is designed to stand alone or be combined with others to cover the entire nation, offering flexibility.

Limitations

• The specific row count, column count, and file size are unknown, limiting assessment of dataset scale.
• Sample data is unavailable, preventing preview of data structure and attribute values.

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) System (MTS).

Time Range

Current data, includes key codes for the 2020 Census and annual estimates/surveys.

Freshness

Last updated on 2025-12-25, indicating recent maintenance.

Geography

Logan County, Illinois, United States.