Changelog

The database undergoes a complete refresh 4 times each year using the latest information from the U.S. Census Bureau, U.S. Geological Survey and American Community Survey.

A record of these historical changes is provided below.

Date	Changes
July 11th, 2023	Population figures have been updated for all cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have updated for all cities (based on the latest US Geological Survey).
January 6th, 2023	ZIP codes have been updated for all cities (based on the latest US Census Bureau release). Land and water areas for all cities have been updated (based on the latest US Geological Survey).
July 13th, 2022	Population figures have been updated for all cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have updated for all cities (based on the latest US Geological Survey).
April 25nd, 2022	Median income and household counts have been updated for all cities (based on the latest American Community Survey results). Population figures have been updated for all cities (based on the latest US Census Bureau release).
January 6th, 2022	Land and water areas for all cities have been updated (based on the latest US Geological Survey). ZIP codes have been updated for all cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have been amended for 9 cities (based on the latest US Geological Survey). Type has been updated for 3 cities (based on the latest US Census Bureau release). County has been updated for 11 cities (based on the latest US Census Bureau release). 3 new locations have been added to the data (based on the latest US Census Bureau release). 5 locations have been removed (based on the latest US Census Bureau release).
July 7th, 2021	Population figures have been updated for all cities (based on the latest US Census Bureau release).
April 30th, 2021	Land and water areas for all cities have been updated (based on the latest US Geological Survey). Latitude and longitude coordinates have been amended for 1729 cities (based on the latest US Geological Survey). ZIP codes have been amended for 590 cities (based on the latest US Census Bureau release). Type has been updated for 94 cities (based on the latest US Census Bureau release). 2441 new locations have been added to the data (based on the latest US Census Bureau release). 156 locations have been removed (based on the latest US Census Bureau release).
January 7th, 2021	Population figures have been updated for all cities (based on the latest US Census Bureau release). Median income and household counts have been updated for all cities (based on the latest American Community Survey results).
October 11th, 2020	Median income and household counts have been updated for all cities (based on the latest American Community Survey results). Latitude and longitude coordinates have been amended for 5 cities (based on the latest US Geological Survey).
July 7th, 2020	Population figures have been updated for all cities (based on the latest US Census Bureau release).
April 5th, 2020	ZIP codes have been amended for 49 cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have been amended for 2 cities (based on the latest US Geological Survey).
January 2nd, 2020	Name has been updated for one city ("Lake City, TN" to "Rocky Top, TN") 2 recently unincorporated cities have been removed (based on the latest US Census Bureau release). 2 newly incorporated cities have been added to the data (based on the latest US Census Bureau release).
October 8th, 2019	Land and water areas for all cities have been updated (based on the latest US Geological Survey). Latitude and longitude coordinates have been amended for 986 cities (based on the latest US Geological Survey). ZIP codes have been amended for 180 cities (based on the latest US Census Bureau release). County has been updated for 8 cities (based on the latest US Census Bureau release). Type has been updated for 7 cities (based on the latest US Census Bureau release). Area code has been updated for 4 cities (based on the latest US Geological Survey). 10 recently unincorporated cities have been removed (based on the latest US Census Bureau release). 6 newly incorporated cities have been added to the data (based on the latest US Census Bureau release).
July 1st, 2019	Population figures have been updated for all cities (based on the latest US Census Bureau release). Median income and household counts have been updated for 30 cities (based on the latest American Community Survey results). Latitude and longitude coordinates have been amended for 1 city (based on the latest US Geological Survey).
January 2nd, 2019	Median income and household counts have been updated for all cities (based on the latest American Community Survey results) Population figures have been updated for all cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have been amended for 10 cities (based on the latest US Geological Survey).
October 2nd, 2018	Land and water areas for all cities have been updated (based on the latest US Geological Survey). Latitude and longitude coordinates have been amended for 1950 cities (based on the latest US Geological Survey). ZIP codes have been amended for 166 cities (based on the latest US Census Bureau release). Type has been updated for 20 cities (based on the latest US Census Bureau release). County has been updated for 12 cities (based on the latest US Census Bureau release). Area code has been updated for 10 cities (based on the latest US Geological Survey). 14 newly incorporated cities have been added to the data (based on the latest US Census Bureau release). 83 recently unincorporated cities have been removed (based on the latest US Census Bureau release). 3 cities have been renamed (based on the latest US Census Bureau release).
July 3rd, 2018	Population figures have been updated for all cities (based on the latest US Census Bureau release). Latitude and longitude coordinates have been amended for 2 cities (based on the latest US Geological Survey). Median income and household counts have been updated for 13 cities (based on the latest American Community Survey results)
April 3rd, 2018	Median income and household counts have been updated for all cities (based on the latest American Community Survey results) Latitude and longitude coordinates have been amended for 2 cities (based on the latest US Geological Survey). 1 duplicate record has been removed from the data.
January 2nd, 2018	Latitude and longitude coordinates have been amended for 1247 cities (based on the latest US Geological Survey). Land and water areas have been updated for all cities (based on the latest US Geological Survey). Type has been updated for 18 cities (based on the latest US Census Bureau release). 7 newly incorporated cities have been added to the data (based on the latest US Census Bureau release). 39 recently unincorporated cities have been removed (based on the latest US Census Bureau release). 3 cities have been renamed (based on the latest US Census Bureau release).
October 6th, 2017	Latitude and longitude coordinates have been amended for 15 cities (based on the latest US Geological Survey).
July 6th, 2017	Latitude and longitude coordinates have been amended for 2 cities (based on the latest US Geological Survey). Population figures have been updated for all cities (based on the latest US Census Bureau release). 1 newly incorporated city has been added to the data (based on the latest US Census Bureau release). For consistency, ZIP codes for all cities are now separated by a forward slash instead of a space.
April 1st, 2017	Latitude and longitude coordinates have been amended for 2 cities (based on the latest US Geological Survey). Cities which span multiple area codes now have all area codes listed, separated by a forward slash. This change affects 8415 cities.
January 4th, 2017	Latitude and longitude coordinates have been amended for 4 cities (based on the latest US Geological Survey). Median income and household counts have been updated for all cities (based on the latest American Community Survey results). Population data has been added for 4 recently incorporated cities (based on the latest US Census Bureau release). 1 recently unincorporated city has been removed (based on the latest US Census Bureau release). Entries have been added for the 5 New York boroughs.
October 4th, 2016	Latitude and longitude coordinates have been amended for 819 cities (based on the latest US Geological Survey). Land and water areas have been updated for all cities (based on the latest US Geological Survey). ZIP codes have been amended for 225 cities (based on the latest US Census Bureau release). 7 newly incorporated cities have been added to the data (based on the latest US Census Bureau release). 39 recently unincorporated cities have been removed (based on the latest US Census Bureau release).
August 14th, 2016	Latitude and longitude coordinates have been amended for 1443 cities (based on the latest US Geological Survey). Population figures have been updated for all cities (based on the latest US Census Bureau release). Median income and household counts have been updated for all cities (based on the latest American Community Survey results). Cities which span multiple counties now have all counties listed, separated by a space. This change affects 1229 cities.