International
- Statista
- Statistical Abstracts of the United States
- The World Bank - Data
- CIA World Factbook (Country Information)
- Currency Converter
- How far is it? (international distance calculator)
- UNiLibrary (United Nations)
- World Inequality Database
U.S. Government/History
- PolicyMap
- United States Census
- Historical Statistical Abstracts of the United States
- U.S. Data and Statistics
- More U.S. Census data (as of July 2019)
- Bureau of Labor Statistics