View Metadata
United States Census Block Groups, 2012
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- TomTom North America, Inc.
- Originator
- Environmental Systems Research Institute (Redlands, Calif.)
- Publication Date
- 2012
- Title
- United States Census Block Groups, 2012
- Edition
- 2012
- Geospatial Data Presentation Form
- vector digital data
- Series Information
- Series Name
- Data Maps for ArcGIS
- Issue Identification
- 2012 - World, Europe, and United States
- Publication Information
- Publication Place
- Redlands, California, USA
- Publisher
- Esri
- Other Citation Details
- Location: \usa\census
- Online Linkage
- https://www1.columbia.edu/sec/acis/eds/dgate/studies/C1301/data/esri_2012_us_blkgrp.zip
- Abstract
- United States Census Block Groups is a polygon theme representing the Census block groups of the United States. Attribute information includes a variety of demographic variables from the U.S. Census.
- Purpose
- U.S. Census Block Groups provides boundaries and demographic information for the U.S. Census block groups within the United States. The boundaries are consistent with the tract, county, and state data sets.
- Supplemental Information
- Largest scale when displaying the data: 1:50,000.
- Temporal Extent
- Currentness Reference
- publication date: 201112, 201003, 2011, 20111027; ground condition: 2010
- Bounding Box
- West
- -179.147340
- East
- 179.778465
- North
- 71.390482
- South
- 17.881242
- Theme Keyword
- polygon
- census block groups
- demographics
- population
- households
- boundaries
- society
- Theme Keyword Thesaurus
- None
- Theme Keyword
- utilitiesCommunication
- society
- Theme Keyword Thesaurus
- ISO 19115 Topic Categories
- Place Keyword
- United States
- Puerto Rico
- Place Keyword Thesaurus
- Library of Congress Subject Headings
- Temporal Keyword
- 2011
- 2010
- Temporal Keyword Thesaurus
- None
- Access Restrictions
- For current Columbia affiliates only.
- Use Restrictions
- For educational, non-commercial use only.
- Status
- Complete
- Maintenance and Update Frequency
- Annually
- Point of Contact
- Contact Organization
- Esri
- Delivery Point
- 380 New York Street
- City
- Redlands
- State
- California
- Postal Code
- 92373-8100
- Country
- USA
- Contact Telephone
- 909-793-2853
- Contact Facsimile Telephone
- 909-793-5953
- Contact Electronic Mail Address
- info@esri.com
- Hours of Service
- 7:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
- Native Data Set Environment
- Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.4000
- Data Quality Information
- Logical Consistency Report
- The shapefile is converted to SDC (Smart Data Compression) format using tools in ArcGIS. The SDC data set is then imported into a file geodatabase to verify, validate, and if needed repair the geometry.
- Completeness Report
- After processing, the data set is checked for drawing display and number of records and file sizes compared with source materials.
- Horizontal Positional Accuracy Report
- Horizontal positional accuracy is dependent on geographic area. In most areas, accuracy is between 5 and 25 meters (16 and 82 feet). In some areas, accuracy is off by up to several tens of meters (100 feet or more). In the poorest areas, accuracy is off by up to 100 meters (328 feet).
- Lineage
- Source
- Originator
- TomTom North America, Inc.
- Publication Date
- 201112; 201003
- Title
- TomTom MultiNet Administrative Areas, 2012
- Edition
- Versions 2011.12 and 2010.03
- Geospatial Data Presentation Form
- vector digital data
- Series Information
- Series Name
- TomTom MultiNet North America
- Issue Identification
- Versions 2011.12 and 2010.03
- Publication Information
- Publication Place
- Lebanon, New Hampshire, USA
- Publisher
- TomTom North America, Inc.
- Online Linkage
- http://www.tomtom.com/
- Type of Source Media
- DVD-ROM
- Source Temporal Extent
- Time Period Information
- Multiple Dates/Times
- Single Date/Time
- Calendar Date
- 201112
- Single Date/Time
- Calendar Date
- 201003
- Source Currentness Reference
- publication date
- Contribution
- Attribute and geospatial data
- Source
- Originator
- Department of Commerce, Census Bureau
- Publication Date
- 2011
- Title
- Summary File 1 (SF 1)
- Edition
- 2010
- Series Information
- Series Name
- Summary File 1 (SF 1)
- Issue Identification
- 2010
- Publication Information
- Publication Place
- Washington, DC, USA
- Publisher
- Department of Commerce, Census Bureau
- Other Citation Details
- The Summary File 1 (SF 1) data is based on the 2010 Census of Population and Housing.
- Online Linkage
- http://www.census.gov/prod/cen2010/doc/sf1.pdf
- Type of Source Media
- online
- Source Temporal Extent
- Time Period Information
- Multiple Dates/Times
- Single Date/Time
- Calendar Date
- 2010
- Single Date/Time
- Calendar Date
- 2011
- Source Currentness Reference
- ground condition: 2010; publication date: 2011
- Contribution
- Attribute data
- Source
- Originator
- ESRI
- Publication Date
- 20111027
- Title
- Esri Data
- Edition
- 2011
- Geospatial Data Presentation Form
- tabular digital data
- Series Information
- Series Name
- Esri Data
- Issue Identification
- 2011
- Publication Information
- Publication Place
- Redlands, California, USA
- Publisher
- Esri
- Online Linkage
- http://www.esri.com
- Type of Source Media
- DVD-ROM
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 20111027
- Source Currentness Reference
- publication date
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- G-polygon
- Point and Vector Object Count
- 219831
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000000
- Longitude Resolution
- 0.000000
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- D_WGS_1984
- Ellipsoid Name
- WGS_1984
- Semi-major Axis
- 6378137.000000
- Denominator of Flattening Ratio
- 298.257224
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- blkgrp
- Entity Type Definition
- The polygons represent the U.S. Census block groups within the United States. A block group is a combination of census blocks that is a subdivision of a census tract, and is generally defined to contain between 600 and 3,000 people. A block group consists of all blocks whose numbers begin with the same digit in a given census tract. For the 2010 Census, a block group value of 0 for the water portion can be delineated in any census tract and not just those census tracts also defined to only include water area.
- Entity Type Definition Source
- Department of Commerce, Census Bureau
- Attributes
- ObjectID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- Esri
- Shape
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- Esri
- STATE_FIPS
- The FIPS code (two-digit number) for the state in which the block group is located. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, National Institute of Standards and Technology
- CNTY_FIPS
- The FIPS code (three-digit number) for the county in which the block group is located. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, National Institute of Standards and Technology
- STCOFIPS
- The combined state and county FIPS code. County FIPS codes begin with 001 for each state; use the combined code (five-digit number) to uniquely identify a county. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, National Institute of Standards and Technology
- TRACT
- The four-digit number, with a two-digit suffix, used to identify a census tract. Census tract numbers are always unique within a county and usually unique within a metropolitan area. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, Census Bureau
- BLKGRP
- The Census code (one-digit number) for the block group. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, Census Bureau
- FIPS
- The combined state and county FIPS codes, and tract and block group numbers. The combined code (twelve-digit number) provides a unique block group identifier. (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce
- POP2000
- The 2000 population of the block group. (Populations for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- POP00_SQMI
- The 2000 population of the block group per square mile. (Calculated populations per square mile for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau; Esri
- POP2010
- The 2010 population of the block group. (Populations for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- POP10_SQMI
- The 2010 population of the block group per square mile. (Calculated populations per square mile for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau; Esri
- WHITE
- The number of people identified as White alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- BLACK
- The number of people identified as Black or African American alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AMERI_ES
- The number of people identified as American Indian or Alaska Native alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- ASIAN
- The number of people identified as Asian alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HAWN_PI
- The number of people identified as Native Hawaiian and other Pacific Islander alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HISPANIC
- The number of people identified as Hispanic or Latino in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- OTHER
- The number of people identified as some other race alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MULT_RACE
- The number of people identified as two or more races in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MALES
- The number of males in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- FEMALES
- The number of females in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_UNDER5
- The number of people 0 to 4 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_5_9
- The number of people 5 to 9 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_10_14
- The number of people 10 to 14 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_15_19
- The number of people 15 to 19 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_20_24
- The number of people 20 to 24 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_25_34
- The number of people 25 to 34 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_35_44
- The number of people 35 to 44 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_45_54
- The number of people 45 to 54 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_55_64
- The number of people 55 to 64 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_65_74
- The number of people 65 to 74 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_75_84
- The number of people 75 to 84 years of age in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AGE_85_UP
- The number of people 85 years of age and over in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MED_AGE
- The median age for both sexes in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MED_AGE_M
- The median age for males in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MED_AGE_F
- The median age for females in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HOUSEHOLDS
- The total number of households in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AVE_HH_SZ
- The average household size in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HSEHLD_1_M
- The number of nonfamily households with a male householder living alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HSEHLD_1_F
- The number of nonfamily households with a female householder living alone in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MARHH_CHD
- The number of family households with a married couple and related children under 18 years in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MARHH_NO_C
- The number of family households with a married couple and no related children under 18 years in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- MHH_CHILD
- The number of other family households with a male householder and related children under 18 years in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- FHH_CHILD
- The number of other family households with a female householder and related children under 18 years in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- FAMILIES
- The number of family households in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- AVE_FAM_SZ
- The average family size in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- HSE_UNITS
- The total number of housing units in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- VACANT
- The number of housing units that are vacant in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- OWNER_OCC
- The number of housing units that are occupied by the owner in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- RENTER_OCC
- The number of housing units that are occupied by renters in 2010. (Numbers for the features. A -99 value means no data.)
- Definition Source
- Department of Commerce, Census Bureau
- SQMI
- The area of the block group in square miles. (Calculated areas for the features.)
- Definition Source
- Esri
- Distribution Information
- Format Name
- SDC
- Distributor
- Esri; Esri Offices
- Online Access
- http://www.ArcGIS.com
- Name
- Metadata Reference Information
- Metadata Date
- 20130205
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Research Data Services (RDS), Columbia University Libraries
- Contact Person
- GIS/Metadata Librarian
- Contact Address
- Address
- 420 W. 118th St. 215 IAB, MC 3301
- City
- New York
- State or Province
- NY
- Postal Code
- 10027
- Contact Voice Telephone
- (212) 854-6012
- Contact Electronic Mail Address
- data@library.columbia.edu
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
