NHGIS: TIGER/Line Shapefile, 2010, 2010 state, Minnesota, 2010 Census Block State-based

This page last updated: 05/07/2011
Metadata created using FGDC Content Standards for Digital Geospatial Metadata


Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Title NHGIS: TIGER/Line Shapefile, 2010, 2010 state, Minnesota, 2010 Census Block State-based
Abstract The NHGIS is a National Institutes of Health and National Science Foundation-sponsored project to create a digital spatial-temporal database of all available historical US aggregate census materials. The available shapefiles on the NHGIS site represent version 2.0 of historical US state/territory boundary files for the 1790 to 2010 decennial censuses and American Community Survey releases.

The TIGER/Line Files are shapefiles and related database files (.dbf) that 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) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Census blocks cover all territory in the United States, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census. A block may consist of one or more faces.
Purpose These data are based upon work supported by the National Institutes of Health and the National Science Foundation. Its purpose is twofold. First, the NHGIS created and freely distributes a database incorporating all available aggregate census information for the United States between 1790 and 2010. The database contains information for a wide variety of statistical (blocks, block groups, census tracts, metropolitan statistical areas, etc.) and administrative units (places, minor civil divisions, counties, states, etc.). Second, the NHGIS produced and freely distributes boundary files for small areas (census tracts and counties) in the United States. Boundary files for tracts are available for the 1910-2010 decennial censuses and American Community Survey releases, and boundary files for counties and states/territories are available for the 1790-2010 decennial censuses and American Community Survey releases. The boundaries contained in this file do not necessarily represent current legal boundaries. Instead, they represent the boundaries over which the U.S. Census Bureau tabulated and published data at that time.

In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.
Time Period of Content Date
Currentness Reference publication date
Progress Complete
Maintenance and Update Frequency TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database. No changes or updates will be made to this version of the TIGER/Line Shapefiles. Future releases of TIGER/Line Shapefiles will reflect updates made to the Census MAF/TIGER database.
Spatial Extent of Data
Bounding Coordinates -97.239196
-89.483385
49.384358
43.499361
Place Keywords United States
Theme Keywords boundaries
Theme Keyword Thesaurus ISO 19115 Topic Categories
Access Constraints None
Use Constraints This dataset was produced with an intended application at the state/territory, regional or national level. Appropriate uses include thematic mapping of census data and spatial analysis of census data. These unaltered data may be redistributed by a third party. If these data are altered or incorporated into another dataset, they are not to be redistributed without also: altering the name of the dataset, including a Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998) compliant metadata file that describes the dataset and reflects the alteration steps that makes the new dataset different from this one, and citing this dataset in the metadata as a source for the altered dataset using the source citation specified below. If these digital data are used in the production of a report or in the compilation of a standalone printed map, then this dataset is to be cited in the report or on the map using the source citation specified below. The following source citation should be used when citing this dataset: Minnesota Population Center. National Historical Geographic Information System: Version 2.0, Minneapolis: MN, University of Minnesota 2011. No fee may be charged for use or distribution. Publications and research reports based on the database must cite it appropriately. Users are requested to send a copy of any publications, research reports, or educational material making use of the data or documentation. Printed matter should be sent to: NHGIS Minnesota Population Center University of Minnesota 50 Willey Hall 225 19th Avenue South Minneapolis, MN 55455.

The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source.
The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.
Contact Person Information ,

50 Willey Hall
Minneapolis, MN  55455
Phone: 612-625-7375
Email: nhgis@umn.edu
Browse Graphic None available
Associated Data Sets

Section 2 Data Quality
Attribute Accuracy Accurate against Federal Information Processing Standards (FIPS), FIPS Publication 6-4, and FIPS-55 at the 100% level for the codes and base names. The remaining attribute information has been examined but has not been fully tested for accuracy.
Logical Consistency The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons are tested for closure.
The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data in the Census MAF/TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, county subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census MAF/TIGER database files. Most of the codes for geographic entities except states, counties, urban areas, Core Based Statistical Areas (CBSAs), American Indian Areas (AIAs), and congressional districts were provided to the Census Bureau by the USGS, the agency responsible for maintaining FIPS 55. Feature attribute information has been examined but has not been fully tested for consistency.
For the TIGER/Line Shapefiles, the Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the shapefile attribute table. For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component of the multi-polygon feature. TIGER/Line Shapefile multi-polygons are an exception to the G-polygon object type classification. Therefore, when multi-polygons exist in a shapefile, the object count will be less than the actual number of G-polygons.
Completeness Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line Shapefiles were created.
Horizontal Positional Accuracy
Lineage TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes for line, polygon, or landmark geographic data.

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme
Horizontal Datum North American Datum of 1983 in the 48 contiguous states, the District of Columbia, Alaska, Hawaii, Puerto Rico, the Virgin Islands of the United States, and the Pacific Island Areas.
Horizontal Units

Section 5 Attributes
Overview
Detailed Citation
Table Detail:
TABBLOCK10.shp - 2010 Census Block State-based (U.S. Census Bureau)
Field NameValid ValuesDefinitionDefinition Source
FID
-
Internal feature number.Esri
Shape
-
Feature geometry.Esri
STATEFP10
-
2010 Census state Federal Information Processing Standards (FIPS) codesU.S. Census Bureau
COUNTYFP10
-
2010 Census county Federal Information Processing Standards (FIPS) codeU.S. Census Bureau
TRACTCE10enumerated2010 Census census tract codeU.S. Census Bureau
000000Water tract in some coastal and Great Lakes water and territorial seaU.S. Census
000100 to 998999Census tract numberU.S. Census Bureau
BLOCKCE10enumerated2010 Census tabulation block numberU.S. Census Bureau
0001 to 9999tabulation block numberU.S. Census Bureau
GEOID10
-
Block identifier; a concatenation of 2010 Census state Federal Information Processing Standards (FIPS) code, county FIPS code, census tract code, and tabulation block numberU.S. Census Bureau
NAME10
-
2010 Census tabulation block name; a concatenation of 'Block', and the current tabulation block numberU.S. Census Bureau
MTFCC10enumeratedMAF/TIGER feature class codeU.S. Census Bureau
G5040Tabulation BlockU.S. Census Bureau
UR10enumerated2010 Census urban/rural indicatorU.S. Census Bureau
MMixed - part of the land area is classified as urban and part is classified as ruralU.S. Census Bureau
NNot Applicable (water-only and international areas)U.S. Census Bureau
RArea is classified as ruralU.S. Census Bureau
UArea is classified as urbanU.S. Census Bureau
UACE10enumerated2010 Census urban area codeU.S. Census Bureau
00001 to 98999Urban Area CodeU.S. Census Bureau
UATYP10enumerated2010 Census urban area typeU.S. Census Bureau
UUrbanized Area (suffix)U.S. Census Bureau
CUrban Cluster (suffix)U.S. Census Bureau
FUNCSTAT10enumerated2010 Census functional statusU.S. Census Bureau
SStatistical entityU.S. Census Bureau
ALAND10enumerated2010 Census land area (square meters)U.S. Census Bureau
0 to 9,999,999,999,999BlankU.S. Census Bureau
AWATER10enumerated2010 Census water area (square meters)U.S. Census Bureau
0 to 9,999,999,999,999BlankU.S. Census Bureau
INTPTLAT10enumerated2010 Census latitude of the internal pointU.S. Census Bureau
00BlankU.S. Census Bureau
INTPTLON10enumerated2010 Census longitude of the internal pointU.S. Census Bureau
00BlankU.S. Census Bureau
GISJOIN
-
unique identifier for joining to NHGIS tabular dataNHGIS
Shape_area
-
Area of feature in internal units squared.Esri
Shape_len
-


Section 6 Distribution
Publisher
Publication Date 2010
Contact Person Information ,

50 Willey Hall
Minneapolis, MN  55455
Phone: 612-625-7375
Email: nhgis@umn.edu
Distributor's Data Set Identifier
Distribution Liability No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
Ordering Instructions
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 05/07/2011
Contact Person Information ,

50 Willey Hall
Minneapolis, MN  55455
Phone: 612-625-7375
Email: nhgis@umn.edu
Metadata Standard Name FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version FGDC-STD-001-1998
Metadata Standard Online Linkage


This page last updated: 05/07/2011
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