Gearing up for 2010Gearing up for 2010

Geographic Programs Leading up to the Census

Katy Rossiter

US Census Bureau – Denver

North Dakota GIS Users Conference

October 24, 2006

Geography and the Decennial Census

• Mandated by Congress to count the population

• Every 10 years

• Results used to apportion the 435 seats in the House of Representatives

• The quality of the census depends on…

– The questionnaires

– Collection of data

– Processing the results

– Linking the data to geography

Geography and the Decennial Census

Geographic Participant Programs Leading to the Census

• MAF/TIGER Accuracy Improvement Program (MTAIP)

• Boundary and Annexation Survey (BAS)

• Census 2010 Redistricting Program

• Local Update of Census Addresses (LUCA)

• Participant Statistical Areas Program (PSAP)

MTAIP• TIGER

– Topologically Integrated Geographic Encoding Reference System

– Developed by Geography Division in the 1980s

• Master Address File (MAF)

• Support the Census Bureau’s mapping needs

– Collect and store accurate geographic data

– Seamless dataset including roads, hydrography, boundaries, political and statistical geography

MTAIP

• Accurately locate every street and map feature in the TIGER database

• Began in 2002

• Completed in 2008

Mixed Accuracy and Completeness

• Reduce costs

• Increase accuracy

• Utilize GPS equipped handheld devices

• Replace paper maps with digital files for other

Census programs

• Create partnerships with Tribal, State, and Local

governments to share existing GIS data

MTAIP

MTAIP

• Harris Corporation

• Align TIGER

– Ingest local GIS data

• Spatial Quality Assessment

– 110 survey-grade GPS points

– CE95 7.6 meters

– Create centerlines from imagery or GPS

BAS• Updates legal boundaries and names of all U.S.

governmental units

• If a county has gone through MTAIP changes may be submitted electronically

• Boundaries used to tabulate data in other Census Programs

– American Community Survey

– Population Estimates Program

– Decennial Census

• Annual Survey

Redistricting Data Program

• Public Law 94-171

• The Census Bureau will provide state legislatures with small area tabulations necessary for redistricting

• Program began Summer 2005

LUCA• Public Law 103-430

• Local governments review and update the Census list of individual addresses

– Allows Census to benefit from local knowledge in developing its MAF

– Benefits local governments by contributing to a more complete and accurate census

• An accurate census means local governments receive their fair share of federal and state funding

• Invitational letters - January 2007

• Promotional workshops - March – May 2007

How does it work?

• Local governments designate a LUCA liaison

• Choose one of three options

• Receive electronic files (paper for small areas)

• Single review period for 120 calendar days

• Field verification of addresses through Address Canvassing operation

• Appeals process through an independent agency

LUCA

LUCA Option 1

• Title 13 Full Address List Review

– Title 13 confidential agreement required

– Make correction, additions, deletions to Census address list

– May challenge block housing counts

– Update map boundaries and features

– May appeal the results to an outside agency

• Title 13 Local Address List Submission

– Title 13 confidential agreement required

– Use Census list as a reference and make additions

– Update map boundaries and features

– May appeal the results to an outside agency

LUCA Option 2

• Non Title 13 Local Address List Submission

– Local governments submit city-style addresses to Census

– Update map boundaries and features

LUCA Option 3

LUCA - Strategies for Review • LUCA participants decide how to conduct their review of the LUCA

materials.

• Consider your available time, the information you have readily available, and the staff or computer resources you have.

• If a complete review is not possible, the Census Bureau recommends that you focus your review on areas where addresses are more likely missed or incorrect.

– New construction

– E-911 address conversions

– Single-family homes converted to multi-family homes and vice versa

– Apartment buildings with irregular or missing numbering schemes

– Annexed land

• LUCA address list and GPS points from Address Canvassing are protected under Title 13

– Baldrige v. Shapiro (1982)

– Need to maintain the quality of the Decennial Census and other surveys

• Penalty $250,000 and/or 5 years imprisonment

LUCA

PSAP

• Enables local governments delineate statistical areas

– Census tracts

– Census blocks groups

– Census designated places

• Begins Fall 2007

Gearing up for 2010

• The Census Bureau has been working since 2002 to make the next Decennial Census more accurate

• Things really get going in Spring 2007

• It is important to maintain partnerships State, Local, and Tribal governments

• The better the geography, the better the count

Questions?

Katy Rossiter

kalyn.mackenzie.rossiter@census.gov

303-264-0215