San Francisco County Topological Face Polygons With Geocodes (2023)

Topological face polygons from the U.S. Census Bureau's 2023 TIGER/Line data for San Francisco County, CA. Each face includes key geographic area codes used to build census geometries. The dataset is designed to stand alone or be combined for national coverage.

Use Cases

• Build census tract geometries by dissolving face polygons on the Census Tract Number attribute.
• Analyze spatial relationships between county subdivisions using the County Subdivision Fips Code and face boundaries.
• Map ZIP Code Tabulation Areas by aggregating faces based on the 5 digit zip code tabulation area code field.
• Identify geographic areas for statistical analysis using the Block Group and Public Use Microdata Area Code attributes.

Strengths

• Data originates from the authoritative U.S. Census Bureau Master Address File/TIGER Database.
• Each topological face has a unique identifier (TFID) for precise referencing.
• Polygons are topologically integrated with no overlaps or gaps, ensuring geometric consistency.

Limitations

• Specific row count, file size, and column details are unknown, limiting pre-download assessment.
• As a 2023 extract, it may not reflect the most recent boundary or code changes after its creation.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

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

Time Range

2023

Freshness

Last updated on platform: 2025-08-10. Underlying data is from 2023.

Geography

San Francisco County, California, United States.