### Census TIGER® 2000 Data from Geography Network INTRODUCTION We are pleased that you are using the Census TIGER® 2000 data available through Geography Network. The Geography Network TIGER® data set includes over 70,000 compressed files of geographic data that are available for download. Each file represents a data layer for a single county in the United States. As data layers are requested for download, ESRI assembles all the files and packages them as a single .ZIP file for download. HOW TO ACCESS THE DATA To access the data, you must decompress the .ZIP file that was downloaded and then decompress each of data layer .ZIP files it contains. This can be done using a compression tool such as WinZip or PK Unzip or using ESRI's ArcExplorer software. Once the data layers have been decompressed, you can display the data using GIS sofware such as ESRI's ArcExplorer or ArcView GIS. Simply use the "add theme" function for each of the shapefiles. FILE NAMING CONVENTION Each data file name is a combination of a layer abbreviation (e.g. 'blk') and a 5-digit County FIPS Code (e.g. '53001') and the file extension (e.g. '.zip' or '.shp'). For example, the compressed county data layer for Cook County, Illinois would be named 'cty17031.zip'. The data layers contained within the .ZIP file contain a TIGER® abbreviation prefix (i.e. 'tgr') followed by the County FIPS and layer abbreviation (e.g. 'tgr17031cty.shp'). Below is a list of the abbreviations for each of the TIGER® data layers.
Layer Name | Abbreviation
Line Features - Roads | lkA
Line Features - Rails | lkB
Line Features - Misc. Transport | lkC
Line Features - Landmarks | lkD
Line Features – Physical | lkE
Line Features – Non-visible | lkF
Line Features – Hydrography | lkH
Line Features – Unknown | lkX
County 1990 | cty
County - Current | ctycu
County 2000 | cty00
Census Tracts 1990 | trt
Census Tracts 2000 | trt00
Block Groups 1990 | grp
Block Groups 2000 | grp00
Census Blocks 1990 | blk
Census Blocks 2000 | blk00
Designated Places 1990 | plc
Designated Places 2000 | plc00
Designated Places – Current | plccu
County Census Divisions – Current | ccdcu
County Census Divisions 2000 | ccd00
Voting Districts | vot
Voting Districts 2000 | vot00
Indian/Alaska Native Areas | air00
American Indian Tribal Subdivisions | aits
American Indian/Alaska Native Areas | air
American Indian/Alaska Native Areas - Current | aircu
Alaskan Native Regional Corporations | arc
Key Geographic Locations | kgl
Landmark Polygons | lpy
Landmark Points | lpt
Traffic Analysis Zones | taz
Urban Areas | urb
Consolidated Cities | city
School Districts – Elementary | elm
School Districts – Middle | mid
School Districts – Secondary | sec
School Districts – Unified | uni
Water Polygons | wat
CMSA/MSA Polygons 2000 | msa00
PMSA Polygons 2000 | pms00
Congressional Districts – 106th | cd106
Congressional Districts – Current | cdc
State House Districts | hse
State Senate Districuts | sen
Oregon Urban Growth Area | uga
Census 2000 Collection Blocks | colblk
ZIP Code Tabulation Areas | zcta
State Legislative District Lower Chamber | sldl
State Legislative District Upper Chamber | sldu
Alternate Feature Names | alt
Address Matching Info | add2
ZIP+4 Left and Right Info | zip
Key Geographic Location Addresses | add
Landmark Polygon Names | lpy2
Landmark Polygons – Multi-landmark | lpy3
Water Polygons – Multi-names | wat2
DATA DOCUMENTATION Documentation for the TIGER® 2000 data can be found on the Census Web site at the URL addresses below: Census TIGER® Overview: http://www.census.gov/geo/www/tiger TIGER/Line® Files Technical Documentation: http://www.census.gov/geo/www/tiger/rd_2ktiger/tgrrd2k.pdf TIGER/Line® Files Metadata: http://www.census.gov/geo/www/tiger/rd_2ktiger/tlrdmeta.txt Note: TIGER® and TIGER/Line® are registered trademarks of the U.S. Bureau of the Census.