Data

We used data from a variety of sources. All data was loaded into a PostgreSQL database.

• Cook County GIS (data can be purchased from the agency)

  • Parcel shapefile
  • Address shapefile (Note: too large for OGR-based tools, needs to be cut down in size or otherwise handled in ArcGIS.)
  • Political boundaries

• DePaul Institute for Housing Studies real estate market data. All of this data originally comes from the County, but it's governed by non-disclosure agreements so we can't publicly release it.

  • Assessed values
  • Foreclosures
  • Mortgages
  • Transactions
  • Cash-financed transactions

• Chicago Metropolitain Agency for Planning

  • Community plans

• County Treasurer's office

  • Scavenger sale list

• Chicago public data portal

  • Zoning
  • Vacant building complaints
  • Building shapefile
  • Crime
  • Transit locations
  • Building permits
  • Community area and neighborhood shapefiles

• Cook County public data portal

  • Mortgages
  • Foreclosures
  • Quit-claim deeds

• Census

  • Population and demographics
  • Income
  • Owner occupancy
  • Household sizes
  • Tract shapefiles
  • Job locations

• HUD/USPS

  • Vacant addresses by census tract

• EPA

  • Brownfield locations

• HMDA

  • Mortgage information, including approval rates and loan costs