The Faith and Community Vigil March was part of the Campaign for Citizenship, an organization of community and faith leaders that encourages people nationwide to support citizenship as a moral and policy imperative.
They called on President Barack Obama and Congress to put immigration reform at the top of their priorities.
Clergy and others argued that the 11 million immigrants who don't have citizenship live and work "in the shadows," and that many have been in the country for more than a decade.
"This is a country of immigrants," said Manuel Gonzalez, 54, of San Bernardino.
"I'm a citizen," he said, "but I march for those who aren't citizens and have been in this country a long time. "
Undocumented immigrants live in the community and are essential parts of the American economy, organizers said.
Inland Congregations United for Change and PICO National Network - a faith-based organizing group - were behind the event.Karen Borja, one of the ICUC organizers, said the Campaign for Citizenship would be one of many times the faith community of San Bernardino will come together to ask for citizenship and to put their faith in action. "They want to be sure they are talking to the right people," she said.
Colton High School student Gerardo Vargas, 16, said the march was to create awareness so that Washington would pass immigration reform.
"We are hoping for amnesty," he said.