The ACSM American Fitness Index (Fitness Index), a ranking of America’s 100 largest cities, celebrates healthy, active lifestyles. Cities with the highest scores are considered to have strong community fitness, a concept analogous to individuals having strong personal fitness.

The 2023 Fitness Index ranked Arlington, VA as the fittest city in America for the sixth year in a row! All 100 cities are commended for their achievements and encouraged to use the Fitness Index findings to track and focus their efforts to achieve a healthier and more physically active population. Explore the 2023 Summary Report for the full rankings, new insights on the Fitness Index indicators, and inspiration from cities working to make changes. To directly compare a specific city, or cities, to the top-ranked city on each indicator, use the new city comparison tool below.

City comparisons are limited on mobile devices. To compare more than one city visit the website from a larger device.

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Interested in the science behind the ACSM American Fitness Index? Learn about our methods published in the Translational Journal of the ACSM

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