social capital

“Social capital is the new gold. Add value to others, value others, and you will be valued.”

― Lynn Ujiagbe, Nigerian Educator, Author and Public Speaker, founder of The Learnzone Foundation
“You are the sum total of the people you meet and interact with in the world. Whether it’s your family, peers, or co-workers, the opportunities you have and the things that you learn all come through doors that other people open for you.”

― Tanner Colby, Some of My Best Friends Are Black: The Strange Story of Integration in America

What Is It?

Social capital is the connective tissue of a healthy society — the trust, relationships, and mutual goodwill that hold communities together and make civic life possible. It’s what turns individuals into neighbors, and neighbors into a community that can act, support each other, and thrive together.

How is it Built?

Social capital isn’t built by institutions handing it down — it’s created from the ground up, through regular, repeated interaction between people. Shared spaces like cafés, clubs, and community centers give people a reason to keep showing up. Structured gatherings — dinners, conversations, recurring events — turn strangers into familiar faces and familiar faces into trusted ones. And crucially, it’s built locally, in person, one consistent interaction at a time.

Who Builds It?

No single institution owns that responsibility — it’s distributed. Local organizers, café and community-space owners, event hosts, club leaders, and everyday residents who keep showing up all play a part. In Petaluma, California, Aqus Community is the leading organization building social capital. Its mission is simple: To build social capital. Belonging is not Aqus Community’s destination; it’s the point of departure. Aqus Community is a social catalyst, providing a practical framework through its programming for transforming human connection into collective action. 

videos and talks on social capital

documentary films related to social capital

Why joining groups builds trust, belonging, and a functioning democracy.
A new PBS documentary examining the biology of human connection.
A new PBS documentary examining the biology of human connection.
Focuses on people overcoming social isolation after COVID and explores practical ways communities are rebuilding connection.

books on social capital

Foundational work documenting the decline of civic engagement in the U.S. and its impact on trust and community life.
Design gatherings with clear purpose and intention so people connect in ways that actually matter.
Belonging is built by shifting from systems and problems to relationships, ownership, and shared accountability.
Focus on “social infrastructure” (libraries, cafés, public spaces) as the physical layer enabling social capital.

leading organizations working on social capital

Institute for Social Capital

Independent research, training, and consulting organization founded by Tristan Claridge.

It is one of the most comprehensive resources on social capital theory, measurement, and practice. 

International Social Capital Association

Global nonprofit membership organization advancing the research and application of social capital through conferences, webinars, publications, and professional collaboration. 

Foundation for Social Connection

Nonprofit organization promoting social connection and social capital through research, policy, and community infrastructure that strengthens relationships and economic mobility. 

Search Institute

Research organization focused on developmental relationships and social capital, particularly for youth, education, and workforce development. 

Christensen Institute

Initiative that helps schools and communities build students’ social capital through mentoring, professional networks, and career-connected learning.