15 Most Livable Midsize U.S. Cities: AARP

AARP Public Policy Institute's latest edition of the most livable communities across the United States includes 1,909 midsize cities, those with 25,000 to 99,999 people. The cities' rankings are based on scores they receive on AARP's Livability Index platform, which uses some 50 national data sources across seven categories: housing, neighborhood, transportation, environment, health, engagement and opportunity ― factors that most affect people's lives as they age. The tool measures every city against 61 indicators of livability, ranging from monthly housing costs to environmental pollution, opportunities for social connections to the presence of age-friendly community plans. See the accompanying gallery for the 15 most livable midsize U.S. cities, according to AARP.