In New York, thousands of protesters filled streets in Midtown Manhattan as they made their way to Trump Tower, while hundreds others gathered at a Manhattan park and shouted: "Not my president."
In downtown Chicago, thousands more gathered outside the Trump International Hotel and Tower while chanting phrases like "No Trump! No KKK! No racist USA." Chicago police closed roads in the area, impeding the demonstrators' path. There were no immediate reports of arrests or violence.
"I'm just really terrified about what is happening in this country," said 22-year-old Adriana Rizzo, who was holding a sign that read: "Enjoy your rights while you can."
Protesters railed against Trump's campaign pledge to build a wall along the border with Mexico to keep out undocumented immigrants, and other policies they deemed racist.
"I'm particularly concerned about the rise of white nationalism and this is to show my support against that type of thing," Rizzo said.
Hundreds also gathered in Philadelphia and Boston on Wednesday evening, and organizers planned rallies in San Francisco, Los Angeles and Oakland, California. In Austin, the Texas capital, about 400 people marched through the streets, police said.
A representative of the Trump campaign did not immediately respond to requests for comment on the protests. In his victory speech, Trump said he would be president for all Americans, saying: "It is time for us to come together as one united people."
Earlier this month, his campaign rejected the support of a Ku Klux Klan newspaper and said that "Mr. Trump and his campaign denounces hate in any form."
Some 1,500 California students and teachers rallied earlier on Wednesday in the courtyard of Berkeley High School, a San Francisco Bay Area city known for its liberal politics, before marching toward the campus of the University of California, Berkeley.
Hundreds of high school and college students also walked out in protest in Seattle, Phoenix, Los Angeles and Oakland, Richmond and El Cerrito, California.
A predominantly Latino group of about 300 high school students walked out of classes on Wednesday morning in Los Angeles and marched to the steps of City Hall, where they held a brief but boisterous rally.
Chanting in Spanish: "The people united will never be defeated," the group held signs with slogans such as "Not Supporting Racism, Not My President" and "Immigrants Make America Great."
Many of those students were members of the "Dreamers" generation, children whose parents entered the United States with them illegally, school officials said, and who fear deportation under a Trump administration.
"A child should not live in fear that they will be deported," said Stephanie Hipolito, one of the student organizers of the walkout. She said her parents were U.S. citizens.
There were no immediate reports of arrests or violence.
Wednesday's demonstrations followed a night of protests in the San Francisco area and elsewhere in the country in response to Trump's victory against heavily favored Democratic rival Hillary Clinton.
Demonstrators smashed storefront windows and set garbage and tires ablaze late on Tuesday in downtown Oakland. A few miles away, students at the University of California, Berkeley protested on campus.
|| Wed Nov 9, 2016 | 8:40pm EST
(Reporting by Timothy Mclaughlin in Chicago and Alexander Besant in New York City; Additional reporting and writing by Curtis Skinner in Berkeley, Calif.; Editing by Leslie Adler and Peter Cooney)