Costa Rica tops all other countries for having the happiest people: “
Costa Rica comes top of the Happy Planet Index 2.0. Costa Ricans report the highest life satisfaction in the world, have the second-highest average life expectancy of the Americas (second only to Canada) and have an ecological footprint that means that the country only narrowly fails to achieve the goal of ‘one-planet living’: consuming its fair share of the Earth’s natural resources.
http://www.happyplanetindex.org/news/archive/news-2.html