Topological Face Polygons for Grant County, Nebraska (2020 Census)

Topological Faces shapefile provides the areal polygon primitives that form the U.S. Census Bureau's Master Address File/TIGER Database for Grant County, Nebraska. It contains unique topological face identifiers (TFID) and key geographic area codes for all Census-tabulated areas, enabling the reconstruction of geographic boundaries. This dataset is part of the seamless national TIGER/Line system designed for independent or combined use.

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 topological faces and their attributes, such as County Fips Code or 5 digit zip code tabulation area code, for demographic mapping.
• Use the unique topological face identifier (TFID) to join this polygon data with other Census datasets containing demographic or economic statistics.

Strengths

• Data is extracted from the authoritative U.S. Census Bureau MAF/TIGER Database, ensuring national topological consistency with no overlaps or gaps.
• Includes key geographic codes for all areas tabulated in the 2020 Census, supporting a wide range of geographic analyses.

Limitations

• The dataset is limited to a single county (Grant County, NE), requiring combination with other county files for broader regional analysis.
• Specific metrics like row count, column count, and data size are unknown, making it difficult to assess the dataset's scale and structure prior to download.

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

2020 Census reference period

Freshness

Based on the 2020 Census; last metadata update was 2024-01-28.

Geography

Grant County, Nebraska, United States