Census.gov
The Census Bureau's mission is to serve as the nation's leading provider of quality data about its people and economy.
census.gov · 49,513
Statista
Leading statistics portal for market data, research, and studies from over 22,500 sources on 60,000 topics.
statista.com · 18,782
Internet World Stats
The comprehensive source for global internet usage and population statistics.
internetworldstats.com · 5,394