Organized nonreligious communities do not, historically, generally have the built infrastructure associated with institutional religious communities. However, a number of nonreligious groups do have regular gatherings at established sites. Their sustained presence in local communities, even if largely unrecognized, nonetheless contributes to the local social and cultural landscape in many ways through community-building, charitable giving, and community service projects.

For example, Camp Quest, an organization that provides summer camp experiences for nonreligious children, operates camp programs in thirteen states. The Billy DeFrank LGBTQ+ Community Center provides community, leadership, advocacy, and supportive services – some of the core components often attributed to institutional religion and often denied by institutional religions to the LGBTQ+ community. Although not a religious organization, the DeFrank center does provide space for LGBTQ+ affirming religious groups.

As with other categorizations, there can be some overlap across nonreligious groups. For example, Go Humanity, a humanist volunteer organization, supports projects to end poverty and hunger, improve health and well-being, and improve employment opportunities and economic equity across the United States through relationships with local nonreligious organizations. Such an organizational endeavor qualifies the organization as a Community Service Organization as well.