1. THE 2010 CENSUS Issues and Dilemmas AAPOR Presentation September 27, 2007 Joseph Salvo Director, Population Division

2. The Master Address File List of all exact addresses in the U.S. Used to mail census questionnaires to most households in the United States Used to pinpoint and follow-up on housing units that do not respond

3. The 2000 Experience

4. Local Data Sources Bell Atlantic “Living Units” Bell Atlantic “Living Units” Con Edison Residential Electric Accounts Con Edison Residential Electric Accounts NYC Finance Real Property Assessment Files NYC Finance Real Property Assessment Files NYC Housing, Preservation and Development (HPD) Multiple Dwelling File NYC Housing, Preservation and Development (HPD) Multiple Dwelling File NYC Department of Buildings File NYC Department of Buildings File Sanborn Inventory of Vacant Structures Sanborn Inventory of Vacant Structures NYC Department of City Planning Facilities File NYC Department of City Planning Facilities File

8. Evaluation of the Initial MAF by DCP Compare MAF and DCP housing unit counts at the building level Compare MAF and DCP housing unit counts at the building level Compare buildings by type Compare buildings by type High-density High-density Middle-density Middle-density Low-density Low-density Field check MAF and DCP counts Field check MAF and DCP counts Special attributes of Bell Atlantic data Special attributes of Bell Atlantic data

9. Total Adds Submitted 439,069 After Block Canvassing and Reconciliation: Number Number Percent Percent284,28864.7 Appealed Adds: Number Number Percent Percent85,62019.5 After Block Canvassing, Reconciliation & Appeal: Number Number Percent Percent369,90884.2 “Adds” by Status – 2000 LUCA

10. The 2010 Census “Short-Form Only”

11. Achieving LUCA Success Build list of addresses beforehand Build list of addresses beforehand Focus on most problematic addresses Focus on most problematic addresses Field check and document your addresses Field check and document your addresses

12. 2010 LUCA ISSUES 2010 LUCA ISSUES Net Undercount is Likely to Increase Net Undercount is Likely to Increase NYC LUCA Takes on a Different Form NYC LUCA Takes on a Different Form Absence of Good Exact Address Information in the MAF Absence of Good Exact Address Information in the MAF

13. Net Undercount What Happened in 2000? What Happened in 2000? Errors in the Enumeration Errors in the Enumeration “Fixes” for the 2010 Count: The Unduplication Problem “Fixes” for the 2010 Count: The Unduplication Problem

14. 2010 LUCA ISSUES 2010 LUCA ISSUES Net Undercount is Likely to Increase Net Undercount is Likely to Increase NYC LUCA Takes on a Different Form NYC LUCA Takes on a Different Form Absence of Good Exact Address Information in the MAF Absence of Good Exact Address Information in the MAF

15. New York City LUCA Receive Census Bureau Address File Receive Census Bureau Address File Compare Administrative Lists Against File and Petition the Bureau to Add, Delete or Modify Addresses Compare Administrative Lists Against File and Petition the Bureau to Add, Delete or Modify Addresses All of this Takes Place at the Building and Exact Address Level All of this Takes Place at the Building and Exact Address Level

17. NYC LUCA: The Approach New Construction New Construction Units Created Through Alteration/Conversion of Existing Buildings Units Created Through Alteration/Conversion of Existing Buildings Preservation of Previous Gains: Field Verification and Appeal Preservation of Previous Gains: Field Verification and Appeal

18. NYC LUCA: Missed Units New construction New construction Conversions of buildings from non-residential to residential use Conversions of buildings from non-residential to residential use Garages converted to residences Garages converted to residences Attics or basements used as apartments Attics or basements used as apartments Subdividing that yields apartments Subdividing that yields apartments

19. NYC LUCA Preservation of Previous Gains 100 Percent Block Canvass 100 Percent Block Canvass Inflicting “Damage” on the NYC Master Address File Inflicting “Damage” on the NYC Master Address File Canvasser Training Canvasser Training

20. Bureau procedures to identify housing units Bureau procedures to identify housing units 1. Utility of verbal verification 2. Apartment numbers and single mailbox problem 3. Lack of incentives to look during block canvassing Residential occupancy of commercial buildings and lofts Residential occupancy of commercial buildings and lofts Housing unit counts in vacant buildings Housing unit counts in vacant buildings NYC LUCA Preservation of Previous Gains

21. 2010 LUCA ISSUES 2010 LUCA ISSUES Net Undercount is Likely to Increase Net Undercount is Likely to Increase NYC LUCA Takes on a Different Form NYC LUCA Takes on a Different Form Absence of Good Exact Address Information in the MAF Absence of Good Exact Address Information in the MAF

22. Census Process Create the Address List Create the Address List Mail Questionnaires Using the List of Addresses Mail Questionnaires Using the List of Addresses Follow-up on Non-responding Households Follow-up on Non-responding Households

23. Absence of Exact Addresses Absence of apartment numbers is a common feature of units in small multi-unit buildings Mailed questionnaires cannot “find” their destination and fieldworkers doing follow-up cannot figure out who answered and who did not answer via mail Mailed questionnaires cannot “find” their destination and fieldworkers doing follow-up cannot figure out who answered and who did not answer via mail Bureau can’t sort out which housing units were counted and which were not

24. Update/ Enumerate Procedures Questionnaires are not mailed Questionnaires are not mailed Census workers walk blocks with a list of addresses in hand Census workers walk blocks with a list of addresses in hand Knock on doors, update addresses and count residents Knock on doors, update addresses and count residents

25. Update/Enumerate

26. Contact Information jsalvo@planning.nyc.gov