Information about our data products.
- Why are your data products often offered as CSV, Excel, and SQL files?
- Why can't I find _____ place in the the US Cities Database?"
- Why does the database contain duplicate cities?
- Why does the zips database only include one city per zip?
- Why don't the city names in the US Zips and US Cities databases always match?
- Why is population missing from most cities in the World Cities Database?
- Why is the zips database missing zip codes?