King County Topological Faces With 2022 Census Geocodes

U.S. Census Bureau provides topological face polygons for King County, WA, extracted from the 2022 TIGER/Line database. Each polygon includes key geographic area codes for building geometries of census tabulation areas. The data is designed to be seamless and combinable with other TIGER/Line files for national coverage.

Use Cases

• Dissolve face geometries on the Congressional District Code to build legislative district boundaries for King County.
• Aggregate topological faces by Census Tract Number to calculate area statistics for demographic analysis.
• Join face attributes using the unique topological face identifier (TFID) to other spatial datasets containing demographic or economic variables.
• Analyze the distribution of Block Group or County Subdivision Fips Code assignments across the county's topological primitives.

Strengths

• Data originates from the U.S. Census Bureau's authoritative Master Address File/TIGER Database (MTDB), ensuring national consistency.
• Each topological face includes all key geographic area codes for 2020 Census and annual survey tabulations, enabling multi-scale analysis.
• Shapefiles are designed to be standalone for King County or combinable to create a seamless national dataset with no overlaps or gaps.

Limitations

• The dataset's specific row count and file size are unknown, making it difficult to assess computational requirements beforehand.
• As a 2022 extract, it may not reflect very recent boundary changes or annexations that occurred after its publication.

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

2022

Freshness

Last updated on January 28, 2024, though the underlying data extract is from 2022.

Geography

King County, Washington, United States