2010 Census Geographic Programs

Jen Weesen

Beth Fitzpatrick

Oregon SDC MeetingNovember 4, 2010

Participant Geographic Programs

• BAS - Boundary and Annexation Survey

• AIA BAS - American Indian Area Boundary and Annexation Survey

• PSAP - Participant Statistical Areas Program

• TSAP - Tribal Statistical Areas Program

• Redistricting Data Program

Post-2010 Geographic Areas

• ZCTAs - ZIP Code Tabulation Areas• Urban Areas – Urban/Rural• TAZs - Traffic Analysis Zones • PUMAs - Public Use Microdata Areas

Boundary and Annexation Survey (BAS)• Collect boundary change information for legal

areas• Survey universe includes all legal entities • Enables data reporting for:

– 2010 Census– American Community Survey– Economic Census– Population Estimates– Other Census Bureau surveys

• American Indian Area (AIA) BAS– Update reservation and trust land inventory

BAS Annual Schedule• Materials Mailout

– Winter

• Submission Deadline– March 1st

• Response Methods– Paper – MAF/TIGER Partnership Software (MTPS)– Digital BAS (ArcGIS Shapefiles)

• AIA BAS Submission Deadline– March 1st

Participant Statistical Areas Program (PSAP)

• Enables coordinating agencies to identify and propose boundary changes for census tracts, block groups, census designated places, and census county divisions in accordance with Census Bureau criteria– Counties, regional planning agencies, council of

governments

• Response Method– MTPS

Statistical Area Criteria Differences from 2000

2000 2010 Minimum Optimum Maximum Minimum Optimum Maximum

CT 1,500 4,000 8,000 1,200 4,000 8,000

HU 480 1,600 3,200

BG 600 1,500 3,000 600 none 3,000

HU 240 none 1,200

CDP

- Cannot have zero population or housing units

- Cannot be coextensive with an incorporated place

- Must represent a single, distinct community

PSAP Schedule

• Materials Mailout– Fall 2008

• Submission Deadline– Spring 2009

• Verification Phase– Spring 2010

Oregon PSAP Participation

• RCC– 19 Counties

• COG/MPO– 16 Counties

• County– One (Klamath)

Tribal Statistical Areas Program (TSAP)

• Enables tribes to define statistical American Indian Areas – Used to collect, tabulate, and present data

• Separate geographic layer– Tribal tracts and block groups may cross county

and state boundaries– Tribal tracts and block groups can be discontiguous– Must follow same population and housing unit

thresholds as standard tracts and block groups

Tribal Statistical Areas Program (TSAP)

• Tribe-Delineated CDPs– Tribes can submit CDPs within reservation/trust

land boundaries– Tribes can work with PSAP participants to delineate

off-reservation CDPs

• Response Methods– Paper Maps– ESRI ArcGIS TSAP Extension

Tribal Statistical Area Criteria

TSAP Schedule• Invitation Mailout

– Fall 2008

• Materials Mailout– Winter 2009

• Submission Deadline– Summer 2009

• Verification Phase– Spring 2010

• TCTs and TBGs updated yearly as reservation and trust land boundaries change

Oregon TSAP Participation• RCC

– Burns Paiute Colony– Celilo Village– Coquille Reservation– Cow Creek Reservation– Klamath Reservation– Siletz Reservation– Umatilla Reservation

• Tribes– Grande Ronde Community– Warm Springs Reservation– Coos, Lower Umpqua, and Siuslaw Reservation

Redistricting Data Program

• Enacted by Congress in December 1975, Public Law 94-171 requires the Census Bureau to provide states with the opportunity to specify geographic areas for which they wish to receive census population tabulations

• Requires the Census Bureau to tabulate decennial census population data, according to the geographies submitted in the state plan, no later than April 1, 2011

Phase 1 – State Legislative District Project (SLDP)

(2004-2006)

• Collection of State Legislative District (SLD) boundaries (House and Senate)

• 100% participation

• Completed in January 2007

Phase 2 – Voting Tabulation District (VTD)

Block Boundary Suggestion Project (BBSP)(2007-2010)

• This phase combined the option to – submit voting district boundaries for 2010 Census

tabulation block boundaries– suggest 2010 Census tabulation block

boundaries

• Participation in both components or just one • Verification phase included for all

components (VTD/SLD/CD)

Phase 3 – Delivery of the Decennial Census 2010

Redistricting Data(2010-2011)

In accordance with 13 U.S.C. 141(c)the Governor and legislative leaders of both the majority and minority parties will receive population counts for standard geographies down to the census tabulation block no later than April 1, 2011

Data Delivery

• Delivery of population counts to the President by December 31, 2010

• TIGER/Line Shapefiles to states in late November 2010 through January 2011

• P.L. data to states February through March 2011– Must be delivered by April 1, 2011

Phase 4 – Collection of Post-Census 2010

Redistricting Plans(2012-2013)

• The Census Bureau will collect from each state newly drawn congressional and legislative district plans

• The Census Bureau will re-tabulate 2010 census data for these newly drawn boundaries

• The American Community Survey (ACS) will also tabulate ACS data for these newly drawn boundaries

Phase 5 – Evaluation and Recommendations

(2012-2014)

• Evaluation of Census 2010 Redistricting Data Program

• Recommendations for the 2020 Census

• “View from the States” – Final phase will result in the 4th edition with

recommendations for the 2020 Census

Post-2010 Census Geographic AreasUrban Areas: Census 2000

Overview

• ZCTAs - ZIP Code Tabulation Areas• Urban Areas – Urban/Rural• TAZs - Traffic Analysis Zones • PUMAs - Public Use Microdata Areas

ZIP Code Tabulation Area Delineation

• 5-digit ZCTAs only for Census 2010 – No 3-digit ZCTAs

• 2010 census blocks will form the “building blocks” for ZCTAs

• ZCTAs will be defined only for areas with residential ZIP Codes– Will not cover the entirety of the nation

• ZCTAs will more closely approximate ZIP Codes

An example of block and MSP address configuration where a block split should occur

Initial ZCTA Line Insertion

Software

The most frequently occurring ZIP Code in this block is associated with only 60% of the addresses.

Example of adding a ZCTA split line to a block

Initial ZCTA Line Insertion

Software

ZCTAs Delineation Schedule

• Spring 2010: Added non-visible edges to MAF/TIGER Database

• November 2010 - March 2011: ZCTA delineation

• April 2011: ZCTA TIGER/Line Shapefiles

Urban/ Rural (Urban Areas)

• Two types of urban areas:– Urbanized areas of 50,000 or more people– Urban clusters of at least 2,500 and less than 50,000

people

• Rural areas– Territory outside urban areas

• Census Bureau has classified Urban since 1906

• Urbanized Areas defined since 1950 Census

• Urban Clusters defined first for Census 2000

Differences Between Census 2000 Urban Area Criteria and

Proposed Urban Area Criteria for the 2010 Census

Criterion Census 2000 FinalProposed 2010

Census

Initial Analysis Unit Block Group Census Tract

Maximum Jump Distance

2.5 miles1.5 miles & no hops

after jump

Airports 10,000 enplanements 2,500 enplanements

Central Place Defined Not defined

Minimum Population 2,5002,500 & 1,500 outside

institutional GQs

Splitting 50,000+ 1,000,000+

Urban Areas: Schedule

• November 22, 2010: Public comment period ends for proposed criteria published in Federal Register– http://www.census.gov/geo/www/ua/urbanruralclass.html

• First quarter of 2011: Final criteria published in Federal Register

• March-December 2011: Delineation

• Spring 2012: Federal Register notice listing Urban Areas

• Spring 2012: Urban/Rural TIGER/Line Shapefiles

Traffic Analysis Zones: Background

• Sponsors – American Association of State Highway and

Transportation Officials (AASHTO) – Federal Highway Administration (FHWA)

• Census Transportation Planning Products (CTPP)– Largest special tabulation done by the Census Bureau

• Primary participants – Metropolitan Planning Organizations (MPOs) – State Departments of Transportation (SDOTs)

Traffic Analysis Zones

Two types of areas:• Traffic Analysis Zones (TAZs)

– Defined based on 2010 census blocks

• Traffic Analysis Districts (TADs)– New for 2010– Aggregations of TAZs

Traffic Analysis Zones: Schedule

• March/early April 2011: Mail out of materials to MPOs and State DOTs– Participants have 3 months to delineate TAZs

• June 2011: Return deadline for submissions

• October 2012: TIGER/Line Shapefiles include 2010 TAZs

PUMA Types• Standard PUMAs (one level)

• Place-of-work (POW) PUMAs and migration (MIG) PUMAs are

proposed to be county based, consisting of:

PUMA 1PUMA 1

PUMA 3PUMA 3

PUMA 2PUMA 2

County

Tract-based PUMA

POW PUMA & MIG PUMA

Boundary Symbology

County ACounty A

County BCounty B

POW PUMA I and MIG PUMA I

– a single PUMA for county-based PUMAs– a combination of adjacent tract based-PUMAs, so that together the

PUMAs compose one or more complete counties

Population Threshold for PUMAs

• Each PUMA must have a minimum 2010 Census population of 100,000

• Minimum population must be met at the time of delineation and maintained throughout the decade

• Number of PUMAs should be maximized

– PUMAs should not contain more than 200,000 people

PUMA Guidelines

• Federal American Indian reservation/off-reservation trust land (AIR/ORTL) relationship wherever possible

• Wherever possible, each PUMA should comprise an area that is either entirely inside or entirely outside a current Core Based Statistical Area

• Use place definitions, urban/rural definitions, as well as local knowledge to inform PUMA delineation

 

PUMA Draft Schedule

• November 2010: Proposed criteria will be distributed to SDCs and a wide variety of stakeholder groups

• August 2011: Materials sent to SDCs for PUMA delineation

• Fall 2011: Hands on training using MTPS

• January 3, 2012: Return deadline for submissions

Census Bureau Geography Website http://www.census.gov/geo/www/index.html

Jen WeesenGeographer

Jennifer.Weesen@census.gov425-908-3017

Beth FitzpatrickGeographer

Beth.A.Fitzpatrick@census.gov425-908-3013

Seattle Regional Census Center