Penn Library-Census 2000 Resources

Penn Library - Census 2000 Resources

This page provides quick links to Census 2000 resources developed by the Penn Library or provided through other web publishers, including the U.S. Bureau of the Census. This page may be updated at any time during the next few years, as Census 2000 data products are released.

Data Releases | Philadelphia Data | Other General Census Resources

Data available for Census 2000

Census 2000 Data Products at a Glance -- Census Bureau web

Brief description of data products and tentative release schedule.

PL94-171 redistricting data

Redistricting Data (Public Law 94-171) -- general information, Census Bureau web

Redistricting Data via American FactFinder -- Census Bureau web

Simple interactive interface for viewing single tables for single geographic units. Very slow and easily overwhelmed Census Bureau web site.

Census 2000 Redistricting Data Sets - State Files -- Census Bureau anonymous ftp

Requires statistical processing software or database management software. Each state-level directory contains three ASCII data files: a fixed-field geography file and two comma-delimited data files (Tables PL1-PL2 and PL3-PL4). One record for each geographic unit within state at these geographic levels: state, county, voting district, county subdivision, place, census tract, block group, block.

SAS codes -- Pennsylvania State Data Center and Ohio State Data Center
SAS code - John Blodgett, OSEDA, Missouri Census Data Center

Redistricting Data (Public Law 94-171) Summary File technical documentation -- Census Bureau web

Census 2000 Redistricting Data Map Products -- Census Bureau web

Describes map products, provides links to PDF-format block, voting district, and census tract map images.

Shortcuts to map images via Census Bureau anonymous ftp

Redistricting Census 2000 TIGER/Line files -- Census Bureau web

Requires GIS software with TIGER/Line conversion capability. The raw data for producing maps, shapefiles, and geographic entity indexes. One set of files covers one county.

Redistricting Census 2000 TIGER/Line files technical documentation -- PDF format, Census Bureau web

Census TIGER 2000 Data -- ESRI Geography Network

Shapefiles for ArcView and ArcExplorer GIS. Projected in NAD83, North American Datum of 1983. Data layers available for blocks, block groups, census tracts, voting districts, designated places, and more, arranged by state and county.

General documentation for Census 2000

ESCAP Report -- Census Bureau Web

Report of the Executive Committee for Accuracy and Coverage Evaluation Policy, March 2001. ESCAP's recommendation that statistical adjustment should not be used to adjust Census 2000 data was accepted by the Acting Director of the Census Bureau.

Census 2000 Geographic Definitions -- Census Bureau web

Census 2000 Short-form questionnaire -- Census Bureau web

Census 2000 and Philadelphia

Philadelphia census tracts

Redistricting Data via American FactFinder -- Census Bureau web

For single tables for single census tracts, select "Pennsylvania", then "Change Selection -> Geography" and follow prompts to "Select the type of area: Census Tracts". Very slow and easily overwhelmed interface.

Redistricting Data (Public Law 94-171) Summary File data extracts -- Penn Library

dBASE-format files providing one record for each census tract. These files may be used with Microsoft Excel, Access, FoxPro, and other software. For variable labels, consult the "Table Matrices" section in the technical documentation.

Geography and Mapping

Map of Philadelphia census tracts, Census 2000 - JPEG format, Penn Library

Census Tract maps -- PDF format, U.S. Census Bureau ftp

File CT42101_000.pdf is the index map for the five detailed map sheets.

Shapefile - requires ArcView or ArcExplorer GIS software, Penn Library

Census 2000 identifies 382 census tracts within Philadelphia, where the 1990 Census identified 366 census tracts.

JOIN file for linking shapefile to PL94-171 data tables -- dBASE format

Use this dBASE-format file in ArcView to link the shapefile (stfid variable) to a data table (logrecno variable).

"Census Tract" definition -- Census 2000 Geographic Definitions, U.S. Bureau of the Census web

Philadelphia voting districts

Geography and Mapping

Voting district maps -- PDF format, U.S. Census Bureau ftp

File PV42101_000.pdf is the index map for the twenty detailed map sheets.

"Voting District (VTD)" definition -- Census 2000 Geographic Definitions, U.S. Census Bureau web

Philadelphia voting district identifiers combine Ward and component Precinct as "Ward + Precinct".

Philadelphia block groups and blocks

PL94-171 data table extracts and shapefiles are under development.

Other Philadelphia Census 2000 resources

2000 Census Data -- Neighborhoods Online

Links and tables for population changes, 1980-2000.

Census 2000 -- Pennsylvania State Data Center

Tables for Pennsylvania and Pennsylvania municipalities, and media materials.

Other General Census Resources

Census 2000 Front Page -- USA Today web

News articles and a snappy mapping interface for county-level PL94-171 data.

Last update: Friday, 16-Mar-2001 17:16:59 EST
Send mail concerning this page to:
Fenghua Wang at fenghua@pobox.upenn.edu or 8-1464 or
Lauris Olson at olson@pobox.upenn.edu or 8-0119