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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) Database (MTDB). The MTDB 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.
Blocks (Census Blocks or Tabulation Blocks) are statistical areas bounded by visible features, such as streets, roads, streams, and railroad tracks, and by nonvisible boundaries, such as selected property lines and city, township, school district, and county limits and short line-of-sight extensions of streets and roads. Generally, blocks are small in area; for example, a city block bounded on all sides by streets. Blocks in suburban and rural areas may be larger, more irregular in shape, and bounded by a variety of features, such as roads, streams, and transmission lines. In remote areas, blocks may even encompass hundreds of square miles. Blocks cover the entire territory of the United States, Puerto Rico, and the Island Areas. Blocks nest within all other tabulated census geographic entities at the time of the decennial census and are the basis for all tabulated data from that census. Census Block Numbers—Blocks are numbered uniquely with a four-digit census block number from 0000 to 9999 within census tract, which nest within state and county. The first digit of the census block number identifies the block group. Block numbers beginning with a zero (in Block Group 0) are intended to include only water area, but not all water-only blocks have block numbers beginning with 0 (zero).
TABLE NUMBER AND CONTENTS | DATA DICTIONARY REFERENCE NAME | NOTES |
File Identification | FILEID | |
State/US-Abbreviation (USPS) | STUSAB | |
Summary Level | SUMLEV | |
Logical Record Number | LOGRECNO | |
Geographic Record Identifier | GEOID | |
Geographic Code Identifier | GEOCODE | |
County (FIPS) | COUNTY | |
Place (FIPS) | PLACE | |
Census Tract | TRACT | |
Block Group | BLKGRP | |
Block | BLOCK | |
Tribal Census Tract | TTRACT | |
Tribal Block Group | TBLKGRP | |
Area (Land) | AREALAND | |
Area (Water) | AREAWATR | |
Area Base Name | BASENAME | |
Area Name-Legal/Statistical Area Description (LSAD) Term-Part Indicator | NAME | |
Functional Status Code | FUNCSTAT | |
Population Count (100%) | POP100 | |
Housing Unit Count (100%) | HU100 | |
Total: | P0010001 | P1. RACE [71] |
Population of one race: | P0010002 | Universe: Total population |
White alone | P0010003 | |
Black or African American alone | P0010004 | |
American Indian and Alaska Native alone | P0010005 | |
Asian alone | P0010006 | |
Native Hawaiian and Other Pacific Islander alone | P0010007 | |
Some Other Race alone | P0010008 | |
Population of two or more races: | P0010009 | |
Total: | P0020001 | P2. HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE [73] |
Hispanic or Latino | P0020002 | Universe: Total population |
Not Hispanic or Latino: | P0020003 | |
Population of one race: | P0020004 | |
White alone | P0020005 | |
Black or African American alone | P0020006 | |
American Indian and Alaska Native alone | P0020007 | |
Asian alone | P0020008 | |
Native Hawaiian and Other Pacific Islander alone | P0020009 | |
Some Other Race alone | P0020010 | |
Population of two or more races: | P0020011 | |
Total: | P0030001 | P3. RACE FOR THE POPULATION 18 YEARS AND OVER [71] |
Population of one race: | P0030002 | Universe: Total population 18 years and over |
White alone | P0030003 | |
Black or African American alone | P0030004 | |
American Indian and Alaska Native alone | P0030005 | |
Asian alone | P0030006 | |
Native Hawaiian and Other Pacific Islander alone | P0030007 | |
Some Other Race alone | P0030008 | |
Population of two or more races: | P0030009 | |
Total: | P0040001 | P4. HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE FOR THE POPULATION |
Hispanic or Latino | P0040002 | 18 YEARS AND OVER [73] |
Not Hispanic or Latino: | P0040003 | Universe: Total population 18 years and over |
Population of one race: | P0040004 | |
White alone | P0040005 | |
Black or African American alone | P0040006 | |
American Indian and Alaska Native alone | P0040007 | |
Asian alone | P0040008 | |
Native Hawaiian and Other Pacific Islander alone | P0040009 | |
Some Other Race alone | P0040010 | |
Population of two or more races: | P0040011 | |
Total: | H0010001 | H1. OCCUPANCY STATUS [3] |
Occupied | H0010002 | Universe: Housing units |
Vacant | H0010003 | |
Total: | P0050001 | P5. GROUP QUARTERS POPULATION BY MAJOR GROUP QUARTERS TYPE [10] |
Institutionalized population: | P0050002 | Universe: Population in group quarters |
Correctional facilities for adults | P0050003 | |
Juvenile facilities | P0050004 | |
Nursing facilities/Skilled-nursing facilities | P0050005 | |
Other institutional facilities | P0050006 | |
Noninstitutionalized population: | P0050007 | |
College/University student housing | P0050008 | |
Military quarters | P0050009 | |
Other noninstitutional facilities | P0050010 |