Mexicans answered 79% were happy with their life, the highest number in the world.
Isreal came in at 75%, while the Americans came in at 65% being happy with their life.
The poll also found that Venezuela, Brazil, Argentina, and El Salvador ranked ahead of the United States in happiness.
At the bottom of the list was Greece with 37%, Egypt at 11%, and Kenya at 14%.
This report is based on polling the citizens of countries around the world, unlike similar reports that determine individual happiness on the countries economic and social policies, not the overall happiness of the residents.
Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping America and the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research.