Uneven access to essential services and amenities: Geographic disparities in 'third place' availability across the United States from 2010 to 2021.

'Third places' are pivotal to daily life as community sites outside of home (first place) and work (second place) that foster civic engagement, social cohesion, upward mobility, and population health. However, their distribution is uneven, and accelerated closures since the Great Recession may deepen socio-geographic disparities across the United States. Using Census tract-level data from the National Establishment Time-Series Database, we investigated changes in third place availability from 2010 to 2021 across 12 categories: art galleries, beauty and barber shops, civic and social organizations, coffee shops, fast-food outlets, grocery stores, libraries, movie theaters, museums, recreation centers, restaurants, and senior centers. Generalized additive mixed models assessed variations by racial/ethnic composition, educational attainment, and rural-urban status. Despite their importance to individual and collective health, all categories experienced widespread closures from 2019 to 2021. While disparities in reduced availability varied by third place categories, declines were particularly acute in Census tracts with higher concentrations of socially vulnerable populations and in rural areas. Our findings demonstrate substantial geographic variation and ongoing change in third place availability. Identifying these disparities is essential to address widening gaps in socioeconomic opportunity and health equity. Targeted interventions and policies that promote more equitable access to third places are essential to support communities 'left behind' and advance both individual and collective health.