The Junior League of Pittsburgh's 400 women volunteers collectively contribute 10,000 volunteer hours annually in the Pittsburgh community. The League educates and trains its members to provide effective volunteer service, to research challenging community needs, and to initiate pilot projects or expand services to meet those needs. It provides administrative, financial, and volunteer support for projects and facilitates the permanent sponsorship of programs by other community organizations.

Through a variety of special events and fundraisers, the JLP raises close to $60,000 a year for its community sponsored committees and activities. Many of these events are open to the public. The JLP is different from other nonprofits in that there is no professional fundraising or special events staff assisting in the events, which means that more money goes directly to the JLP and back to the community. Membership dues finance most of the League's administrative expenses.