Suffolk County NY Topological Faces with 2020 Census Geocodes

U.S. Census Bureau provides topological face polygons for Suffolk County, New York, from the 2020 TIGER/Line database. The dataset includes key geographic area codes for all Census tabulation areas, enabling the reconstruction of census geography boundaries. It is part of a seamless national file designed to stand alone or be combined for national coverage.

Use Cases

• Dissolve face geometries on the TFID (Topological Face Identifier) to reconstruct census tract or block group boundaries for spatial analysis.
• Join face attributes like County Fips Code or Congressional District Code to demographic data for aggregated mapping.
• Analyze the topological relationships between faces and edges to validate the geometry of the Master Address File/TIGER Database (MTDB).
• Use the 5 digit zip code tabulation area code attribute to create ZIP Code Tabulation Area (ZCTA) polygons for Suffolk County.

Strengths

• Derived from the authoritative U.S. Census Bureau Master Address File/TIGER Database (MTDB), ensuring national consistency.
• Contains key geographic area codes for all 2020 Census tabulation areas, supporting a wide range of geographic aggregations.
• Data is part of a seamless national file with no overlaps or gaps, providing a topologically correct foundation.

Limitations

• Specific row count, column count, and file size are unknown, making it difficult to assess the dataset's scale and complexity.
• As a 2020 Census product, the data may not reflect more recent boundary changes or demographic shifts.
• The description and tags suggest a complex schema with many geocodes, which may require significant domain knowledge to use effectively.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

Extract of selected geographic and cartographic information from the Master Address File/TIGER Database (MTDB).

Time Range

2020 Census reference period.

Freshness

Last updated on 2024-01-28, though the underlying census data is from 2020.

Geography

Suffolk County, New York, United States.