The 2020 Healthiest Communities rankings highlight this fact by measuring nearly 3,000 U.S. counties and county equivalents across 84 factors that form and define the health of a community and its residents, in 10 categories ranging from the economy and public safety to education, food and nutrition, and housing. Communities are scored on a 100-point scale based on their performance relative to one another across metrics and categories, and are ranked based on those scores.

Out of the 500 Healthiest Communities overall, these are the 25 that scored the best, making them the Healthiest Communities in America. Learn more about how communities were ranked and scored in our methodology.

No. 25: Dallas County, Iowa

Population: 66,135

Community type: Urban, high-performing economy

Overall score: 79.1

Performs best in: Infrastructure, Economy, Population Health

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