From the Centre College Alumni Survey.
Half the alumni "regularly participate in local organizations, such as Rotary, garden club, community theater, Boy Scouts, recreational sports." About a third of those participating listed formal service organizations first, with youth support close behind, and religious organizations third.
In answer to the "third place" question - that is, "Is there a place, besides home or work, where you regularly spend time socializing?" two-thirds named at least one place. Among the most popular locations, with many overlaps, were: restaurants, named by 32%; athletic fields and gyms, 19%; parks 12%; coffee houses 12%; and country clubs 10%.