The citizens of United States can visit 140 countries without a visa.
American passport holders also have access to get 37 e-visas or 21 visas on arrival.
United States has a population of 329.5M people and the capital is Washington, D.C. 🇺🇸.
The nearest visa free countries to visit for American passport holders are Canada, Mexico, Guatemala, El Salvador, Belize and Honduras.
This data has been sourced from Wikipedia and last updated 5/1/2022.