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TIGER/Line Shapefile, Current, County, Sac County, IA, Topological Faces-Area Hydrography Relationship File

Published by U.S. Department of Commerce, U.S. Census Bureau, Geography Division | U.S. Census Bureau, Department of Commerce | Catalog Last Checked: August 02, 2026 at 10:36 AM | Dataset Last Updated: October 01, 2025 at 12:00 AM
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Topological Faces/Area Hydrography Relationship File contains a record for each face/area hydrography feature relationship. Face refers to the areal (polygon) topological primitives that make up the MTS. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The face to which a record in the Topological Faces/Area Hydrography Relationship File (facesah.dbf) applies can be determined by linking to the Topological Faces shapefile (faces.shp) using the permanent topological face identifier (TFID) attribute. The area hydrography feature to which a record in the Topological Faces/Area Hydrography Relationship File applies can be determined by linking to the Area Hydrography shapefile (areawater.shp) using the area hydrography identifier (HYDROID) attribute. A face may be part of multiple area water features. An area water feature may consist of multiple faces.

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Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "U.S. Department of Commerce, U.S. Census Bureau, Geography Division",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:geo.geography@census.gov"
}
describedByType application/octet-steam
description The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Topological Faces/Area Hydrography Relationship File contains a record for each face/area hydrography feature relationship. Face refers to the areal (polygon) topological primitives that make up the MTS. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The face to which a record in the Topological Faces/Area Hydrography Relationship File (facesah.dbf) applies can be determined by linking to the Topological Faces shapefile (faces.shp) using the permanent topological face identifier (TFID) attribute. The area hydrography feature to which a record in the Topological Faces/Area Hydrography Relationship File applies can be determined by linking to the Area Hydrography shapefile (areawater.shp) using the area hydrography identifier (HYDROID) attribute. A face may be part of multiple area water features. An area water feature may consist of multiple faces.
distribution 
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identifier https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/tl_2025_19161_facesah.dbf.iso.xml
issued 2025-01-14T00:00:00.000+00:00
keyword 
[
  "County or equivalent entity",
  "Table",
  "Topological Faces",
  "Hydrography",
  "State FIPS Code",
  "County FIPS Code",
  "State GNIS Code",
  "County GNIS Code",
  "Permanent face ID",
  "Area hydrography identifier",
  "Land/Water flag",
  "County or Equivalent Entity",
  "Sac",
  "19161"
]
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-10-01T00:00:00.000+00:00
publisher 
{
  "name": "U.S. Department of Commerce, U.S. Census Bureau, Geography Division",
  "@type": "org:Organization"
}
rights otherRestrictions, otherRestrictions
spatial -37.395754,-10.005048,-37.395754,-10.005048
temporal 1983-01-01T00:00:00+00:00/2015-01-01T00:00:00+00:00
theme 
[
  "geospatial"
]
title TIGER/Line Shapefile, Current, County, Sac County, IA, Topological Faces-Area Hydrography Relationship File

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