Before founding Cooper Union, Peter Cooper was a consistent supporter of public education initiatives, providing funds and resources to schools and educational programs for the disadvantaged.

Peter Cooper frequently donated to various charitable organizations that addressed poverty, homelessness, and other social issues in New York City and beyond. He emphasized practical support to help those in need.

During the American Civil War, Peter Cooper contributed significantly to relief efforts, providing aid to soldiers, veterans, and their families. He believed in supporting the Union cause through both financial and logistical support.

As an employer, Peter Cooper promoted fair labor practices, including reasonable working hours and decent wages for his employees. He believed in treating workers with respect and providing opportunities for their advancement.