2010 Census Data Release and Current Geographic Programs. Michaellyn Garcia Geographer Seattle Regional Census Center

Transcription

1 2010 Census Data Release and Current Geographic Programs Michaellyn Garcia Geographer Seattle Regional Census Center

2

3

4

5

6

7 2010 Center of Population Located approximately 2.7 miles northeast of Plato, Missouri

8

9 2010 Census Data Products Released: 2010 Census Redistricting Data (PL ) State Population Counts, Race and Ethnicity State Housing Units and Occupancy Status

10 2010 Census Data Products

11 American Community Survey Replaces the once every 10 years or Long Form detailed demographic sample survey of 1 in 5 households that was conducted during the Decennial Census. Long Form data was published in Summary Files 3 & 4 after Census There will be no SF 3 or SF 4 for This data is now updated annually through the American Community Survey (ACS)

12 American Community Survey Population Characteristics Period estimates describe the average characteristics over a specific time period Questions similar to long form from 2000 Participation is mandatory Survey: 250k households per month (3 Million per year) Social Education Marital status Fertility Citizenship Veterans Disability Economic Income Benefits Employment Status Occupation Industry Commuting to Work Place of Work Housing Tenure Occupancy & Structure Housing Value Taxes and Insurance Utilities Mortgage/payment Demographic Gender Age Hispanic Origin Race

13 American Community Survey Up to three types of estimates are available from the American Community Survey (ACS) depending on the level of geography: 1 year estimates (based on data collected in a single year) for areas with 65,000+ population 3 year estimates (based on data collected in three consecutive years) for areas with 20,000+ population 5 year estimates (based on data collected in five consecutive years) for small geographic areas

14 1 Year Estimates 3 Year Estimates 5 Year Estimates The 2009 ACS 1 yr estimates are based on data collected between January 2009 and December 2009 The ACS 3 yr estimates are based on data collected between January 2007 and December 2009 The ACS 5 yr estimates are based on data collected between January 2005 and December 2009 * Published for selected geographic areas with populatons of 65,000 or greater Current ACS Data Releases * Published for selected geographic areas with populatons of 20,000 or greater * Published for small geographic areas * Represents the average characteristics over calendar year 2009 * Have smaller sample size than 3 year and 5 year estimates * Are more current than 3 year and 5 year estimates Next Release: The year ACS estimate * Represents the average characteristics over a 3 year period of time * Have larger sample size than the 1 year estimates but smaller than the 5 year estimates * Are less current than the 1 year estimates however more current than the 5 year Next Release: The year ACS estimate * Represents the average characteristics over a 5 year period of time * Have larger sample size than the 1 year and 3 year estimates * Are less current than the 1 year and 3 year estimates Next Release: The year ACS estimate

15 AFF Transition Page to New (AFF2) from Legacy (AFF)

16 SIMPLE DATA QUERY OVERVIEW THIS BOX DRIVES THE DATA SELECTION. The 1 st step is to populate this box

17 CLICK on Geographies

18 Select Geographies box comes up. The easiest way to get to the data is to type your desired geography into the filter:

19

20

21 TURN OFF Select Geographies

22

23

24 2010 Geographic Products Released: 2010 TIGER/Line Shapefiles (via FTP or Web interface) 2000 Tab Block to 2010 Tab Block Relationship files (txt files) PDF maps: Tract Reference Maps, County Block Maps, Voting District/School District maps, Total population and pop change maps RECOMMENDED LINK: 24

25 Geographic Improvements for the 2010 Census Use of GPS for the 2010 Census GPS coordinates collected for the majority of housing units in the United States (exception for extreme rural areas with limited access and areas in Alaska) Required TIGER to shift from: Relative Accuracy to Positional Accuracy So that GPS Coordinates for Housing Units would Geocode to the correct Census Block 25

26 MAF/TIGER Accuracy Improvement Project (MTAIP) Obtained GIS files from local partners Generally county, state, tribal or regional planning officials Files were evaluated for completeness and spatial accuracy Evaluated against TIGER and imagery for completeness Spatial accuracy tested Also obtained the National Hydrography Dataset (NHD) from USGS High resolution 1:24,000 used in most places

27 Implementing MTAIP, cont. If local sources did not meet spatial accuracy and no other source was available Spatial Enhancement of local file to imagery NAIP imagery used for several rural counties in Washington State Limitation was that no attribute data (such as street names and addressing) were collected If imagery was not available Contractor drove every road in the county collecting a GPS trail Attributes collected Snohomish County was the only Driven county in Washington

28 Pre MTAIP Legacy TIGER/Line 2000 City of Kent King County Washington

29 Post MTAIP TIGER/Line Realigned to King County s file

30 Comparison Realigned TIGER Pre MTAIP TIGER

31 Comparing Data and/or Assessing Change The realigned files currently maintain the topography of Census Boundaries from Census 2000 To compare data or geography between 2000 and 2010, you must use the 2000 and 2010 geographic layers from the downloadable 2010 TIGER/Line files. The following Census 2000 boundaries have been realigned to 2010 Geography: American Indian Areas (aiannh) Block Groups (bg) The 108 th Congress Congressional Districts (cd108) Counties (county) County Subdivision(cousub) Places (place) School Districts (unsd) State Legislative Districts (sld) Tabulation Blocks (tabblock) Tracts (tract) Voting Districts (vtd) Annexations/Incorporations/Boundary Changes that occurred after Census 2000 will be represented as they were on Census Day in the 2010 TIGER/Line Shapefiles. Previous benchmarks will not be topologically corrected.

32 Count Question Resolution CQR

33 CQR Program that allows State, Local and Tribal governments to challenge the census count for their jurisdiction if they believe there was an error due to: Incorrect Boundaries Undisputed legal boundaries on or before January 1, 2010 incorrectly delineated or reported Geocoding Coverage Issues (incorrect deletion, addition, duplication)

34 CQR The Census Bureau requires specific documentation before committing resources to investigate a challenge. The submitted challenges must specify whether the challenge disputes the location of a governmental unit boundary, the location or number of housing units and/or group quarters counts in one or more 2010 census tabulation blocks, or both. Maps must identify the state, county, 2010 census tracts, and 2010 census tabulation blocks associated with the challenge. Address lists of housing units and/or group quarters located in the challenged areas are also required. The Census Bureau will specify the format required for the submission.

35 CQR Program information is NOW posted on the CQR website: Guidelines Address List Templates (similar to LUCA) Contact Information cqr.php

36 CQR Challenges must be submitted by the Highest Elected Official (HEO) or designated representative June 1 st 2011 June 1 st 2013 (postmarked) Submit either electronically or by mail: dmd.cqr@census.gov Count Question Resolution Program Decennial Management Division U.S. Census Bureau Washington, DC 20233

37 CQR Questions Please call or the CQR program at: Or call the Seattle Regional Census Center at:

38 Moving Forward: Preparing for the 2020 Census

39 The Geographic Support System Initiative What is it? An initiative before Congress to increase in our base funding for improving the addresses in our Master Address File Why is it important? A response to stakeholder and oversight recommendations to update and maintain our address and spatial data with a special focus on rural areas, group quarters and Puerto Rico What does it involve? An integrated program of improved address coverage, continual spatial feature updates, and enhanced quality assessment and measurement through partnerships Who are the major players? US Census Bureau with federal, state, local and tribal governments

40 Ongoing GSS Teams Teams comprised of Census Bureau staff and other federal agencies (USGS, NOAA NGS, USPS) were formed to address specific aspects of the GSS Initiative Project and Contract Management Policy Research and Development Quality, Assessments/Evaluations Address Coverage and Sources Feature Coverage and Sources Partnerships MAF/TIGER Integration/Linkage Geocoding Global Positioning Systems (GPS)

41 A Shift in Focus for the 2020 Census From a complete address canvassing to a targeted address canvassing Hinges on establishing an acceptable address list for each level of government What defines acceptable will be a partnership collaboration between government partners and the Census Bureau 41

42 Improving the Master Address File (MAF) In conducting the 2010 Census, our primary sources for address updates: USPS Delivery Sequence File (DSF) Local Update of Census Addresses (LUCA) Field updates For FY 11 and beyond, additional sources will focus on best available data from government partners and commercial files 42

43 MAF Challenges No national addressing system Lack of addressing standards these are just now coming into place Constraints in working with partners to build and maintain the MAF Requires close collaboration with the U.S. Postal Service However DSF only covers areas that receive mail Not all DSF records geocode to TIGER Requires substantial partnership program with tribal, state, and local governments (up to 40,000) Two way address sharing is difficult and tenuous under confidentiality constraints of Title 13

44 Maintaining Our Feature Network Continuous update of street network and attributes Sharing results with USGS and DOT Sources will focus on best available data from government partners and commercial files Extensive use of imagery Source for spatial data Used for data verification Used for data quality assurance

45 Quality Quality improvements apply to Address and spatial data IT processes Geographic products Quantitative measures of address and spatial data quality are needed

46 For the Geographic Support System Initiative to be Successful Partners are important Federal, state, local, and tribal governments Commercial vendors (data and service providers) Working relationships must be: Least intrusive on the participating government Most efficient / timely Ensure complete and quality data

47 THANK YOU Michaellyn Garcia Geographer Seattle Regional Census Center