CHAS DATA

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CHAS DATA

• Todd Richardson
• U.S. Department of Housing and Urban Development
• Office of Policy Development Research

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Presentation Summary

• Accessing the data
• Downloading the data
• Understanding the data
• Using the data

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Accessing the data

• State of the Cities Data System
• http//socds.huduser.org/scripts/odbic.exe/chas/in
  dex.htm?
• HUDUSER - data sets - consolidated plan
• http//www.huduser.org/datasets/cp.html

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State of the Cities

• Housing Problems Table
• 1990 Data
• All Households, White-nh, Black-nh, Hispanic
• 2000 Data
• All Households, White-nh, Black-nh, Hispanic,
  Asian-nh, Native American-nh, Pacific
  Islander-nh, Mobility and Self-Care Limitation

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State of the Cities

• Affordability Mismatch
• 2000 Data
• Occupancy, age, and vacancy rate of units
  affordable to persons in different income
  categories

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Other helpful data at SOCDS

• http//socds.huduser.org/index.html
• Data from the 1970, 1980, 1990, and 2000 Census
• Current Employment Statistics for City Residents
• Special City Extracts from County Business
  Patterns
• FBI Crime Data
• Building Permits Database
• Urban Public Finance Data

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HUDUSER - Data Sets - Consolidated Plan

• Detailed Tables
• 59 tables
• Multiple Geographic Levels
• State, County, Place, Consolidated City, Tract
  (part), a few tables at Block Group level
• Different Ways to Download
• By State (DBF files only)
• Nationally (SAS, SPSS, DBF Files)

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Detailed Tables

• Example Table to Download
• A1A040.DBF - Table, Geographic Summary Level,
  Data Format
• A Tables
• General CHAS data tables at six geographies
  mentioned
• B Tables
• Less disaggregated CHAS data at Block Group level
• F Tables
• Tables created for running various formulas

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Detailed Table Tips

• Also download the data dictionary, files are
  highly disaggregated
• Use the highest level geography that makes sense
• Rounding issue with special tabulation data
• Mapping with Tract and Block Group Data
• The tract (part) and block group (part) data
  split at place boundaries requiring non-standard
  GIS shape files which HUD has created and can
  also be downloaded.

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Downloading the Data

• SOCDS data tables downloadable in Excel File
• VERY IMPORTANT - USE NON-FRAMES VERSION OF SOCDS
  IN ORDER TO DOWNLOAD
• HUDUSER data files are in zipped files.
• The State Downloads, which most people will
  likely use, have data for every table and every
  geography all zipped into a single file. This
  allows the user to be selective about what they
  want to extract.

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Understanding the Data

• These data are largely built around HUDs Low/Mod
  area definitions 30, 50, and 80 of HUD Area
  Median Family Income (HAMFI)
• HAMFI is calculated based on the median income
  for a metropolitan area, assuming that is income
  for 4-person HH.
• HAMFI is adjusted for family size

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HAMFI vs. Poverty

• On average, households at less than 30 of HAMFI
  equate to households at the poverty level.
• However, in high cost/high income markets, the
  of households less than 30 is much higher than
  poverty rate. Similarly in low cost/low income
  markets, the of households less than 30 is
  much lower than poverty rate.
• We use HAMFI as a proxy to account for different
  costs of living.

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Example of 1999 HAMFI
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Do not confuse CHAS data with CDBG Low/Mod Area
Data

• CDBG Low/Mod Area Data are NOT based on the
  special tabulation data. They are created using
  a routine that extrapolates from SF3 data. You
  can download CDBG Low/Mod Area Data from
  http//www.hud.gov/offices/cpd/systems/census/lowm
  od/index.cfm

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Housing Needs - CHAS

• Housing Quality
• Census Data weak measure on housing quality
• Without complete kitchen or complete plumbing
• Overcrowding
• Greater than 1.01 persons per room
• Severe Crowding GT 1.51 persons per room
• Increased over past decade

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Housing Needs (cont)

• Affordability
• Cost Burden - greater than 30 of income for
  housing
• Severe Cost Burden - greater than 50 of income
  for housing

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Using the Data Example
A3B. HOUSEHOLD INCOME IN 1999 BY HOUSING UNIT
PROBLEM SEVERITY (35) Universe Renter occupied
housing units   Household income less than
or equal to 30.0 of HAMFI Lacking complete
plumbing facilities or lacking complete kitchen
facilities With 1.51 or more person per
room, none of the needs above With 1.01 to
1.50 persons per room, none of the needs above
Housing cost burden over 50.0 percent, none of
the needs above Housing cost burden 30.1 to
50 percent, none of the needs above Zero
income No housing unit problems Household
income 30.1 to 50.0 of HAMFI (Repeat HOUSING
UNIT PROBLEM SEVERITY ) Household income 50.1
to 80.0 of HAMFI (Repeat HOUSING UNIT PROBLEM
SEVERITY ) Household income 80.1 to 95.0 of
HAMFI (Repeat HOUSING UNIT PROBLEM SEVERITY
) Household income above 95.0 of
HAMFI (Repeat HOUSING UNIT PROBLEM SEVERITY )
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Source Table A3B040r Census 2000 CHAS Special
Tabs
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Source Table A3B040r Census 2000 CHAS Special
Tabs
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Other Favorite Tables

• The F5 Tables
• HOUSING UNIT PROBLEMS AND COST BURDEN BY
  HOUSEHOLD INCOME IN 1999 BY HOUSEHOLD TYPE
• F5A Owners with a mortgage
• F5B Owners without a mortgage
• F5C Renters of Single Family Homes
• F5D Renters of Multifamily Units

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Other Favorite Tables

• Mobility and Self-Care Limitations by housing
  needs and age of household members Tables A7A,
  A7B, A7C
• Housing Need by Income Breaks of 20, 30, 40,
  50, 60, 65, 80, 95, 100, 115, 120 and
  140 of HAMFI Tables A6A A6B

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Other Favorite Tables

• Poverty Rates with and without college students
  Table A13
• Income and Age of Housing for Families with
  Children Age 6 and Under Tables A14A and A14B

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GIS Shape Files for Census Tract (part) and
Block Group (part) files

• Shape files for Summary Levels 080, 090, and 091
  are not standard products so HUD created them.
  You can download at http//www.huduser.org/geo/su
  mmarylevel.asp

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www.huduser.org/geo/summarylevel.asp
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Select a Summary Level
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Select a State
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Select a County
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Join CHAS or CDBG Low/Mod Data to Boundary File
For CDBG Low/Mod Use common LOGRECNO field
For CHAS Tables, join on SUM080 (for Tract) or
SUM091 (for Block Group)
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Questions or Comments

• Todd Richardson
• Phone [phone] x 5706
• Email Todd_M._Richardson_at_HUD.GOV