Topological Faces shapefile from the 2020 U.S. Census TIGER/Line database for Boone County, Iowa. It contains polygon primitives with unique identifiers and key geographic area codes for Census tabulation. The data is extracted from the national Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database.
Use Cases
- Dissolve face geometries on key geographic area codes to build geometries for Census tracts or block groups.
- Analyze topological relationships between faces using the unique topological face identifier (TFID).
- Join demographic data from other Census sources using the geographic area codes embedded in each face polygon.
Strengths
- Data originates from the authoritative U.S. Census Bureau MAF/TIGER Database.
- Contains key geographic area codes for all geographic areas used in 2020 Census tabulation.
- Shapefile is topologically integrated, designed to stand alone or be combined for national coverage.
Limitations
- Sample data and specific row/column counts are unavailable for assessment.
- Limited to a single county (Boone County, IA), requiring combination with other files for broader analysis.
- Data is from the 2020 Census and may not reflect more recent geographic changes.
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
- 2020 Census
- Freshness
- Last updated on 2024-01 28, though the underlying data is from the 2020 Census.
- Geography
- Boone County, Iowa, United States