Data Releases

We're constantly working to improve our databases by looking for new sources, adding new variables, and improving the way in which we aggregate, match and clean data. Below are the releases we've made for each database. Moving forward we anticipate releasing updates on at least a quarterly basis.

World Cities Database

1.4 - August 28, 2018

  • Rewrote merging code to improve coverage and accuracy.
  • Added and removed places.
  • Added fields city_alt, timezone, ranking.
  • Renamed admin to admin_name to avoid conflict in MySQL.

1.3 - June 27, 2017

  • Added and removed places.
  • Replaced population with population and population_proper.

1.2 - March 29, 2017

  • Added and removed places.

1.1 - February 2, 2017

  • Added and removed places.

1.0 - December 2016

  • Created and tested internally.

US Cities Database

1.4 - April 16, 2018

  • Rewrote merging code to improve coverage and accuracy.
  • Added and removed places.
  • Added fields density, timezone and incorporated.

1.3 - July, 2017

  • Added and removed places and zips.
  • Replaced population with population and population_proper.
  • Added field id.

1.1 - February 23, 2017

  • Initial release.

US Zips Database

1.4 - October 9, 2018

  • Added new zip codes and removed old ones.
  • Replaced field state with state_id and state_name.
  • Improved schema of the .sql file.
  • Improved formating of boolean fields in the .sql file.
  • Added population field.
  • Improved formating of all_county_weights.

1.2 - October 1, 2017

  • Added and removed zips.

1.1 - October 31, 2016

  • Initial release.

1.0 - Fall 2016

  • Tested internally.

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