In Austin, thousands of individuals were expected to gather at city hall and the state Capitol for what was to be a series of day long events, including a rally against Trump and a rally defending abortion and other reproductive rights.
Despite the crowd sizes, the number of participants in this year's rallies fell well short of the estimated 5 million who marched against the election result on January 21, 2017, in one of the largest mass protests in USA history. More rallies were planned at other cities on Sunday.
People held up signs that read, "Brown is Beautiful", "Rise Up Woman" and "Love Not Hate Makes America Great".
"Beautiful weather all over our great country", Trump tweeted, "a flawless day for all Women to March".
"I think previous year was that watershed moment of President Trump's election", Melbourne organiser Melissa Goffin told AAP.
To mark Trump's first year in office, marchers spilled out of Terry Schrunk Plaza and onto the streets of downtown Portland, following a map that made 12 stops.
Across the globe, people hit the streets on the anniversary of Trump's inauguration, marching against his policies and in support of the #MeToo movement against sexual assault and harassment.
The protests this year go beyond just fighting for women's rights in general, though that is still a primary focus.
Trump goes after the Dem who surfaced his immigration remark
His account of that moment seems like confirmation that the word was said, but without saying the words in black-and-white. The governor's campaign spokesman later said Rauner believes Duke is a racist and that Trump's comment was "unacceptable".
The 2017 rally in Washington, D.C., and hundreds of similar marches created solidarity for those opposing Trump's views, words and actions.
Baxa said she was motivated to march "by a myriad of things", including a certain "horrific phrase" said by the president.
In lieu of a speech, the singer shared a somber poem about rape during the Women's March in NY.
Sen. Kirsten Gillibrand (D-N.Y.), who spoke at the D.C. rally Saturday, said that the second year of marches showed "our grassroots energy is growing, not fading".
As scores of people took part in Women's March demonstrations across the country, United States President Donald Trump touts "unprecedented economic success".
In Palm Beach, Florida, home to Trump's Mar-a-Lago estate, several hundred people marched Saturday carrying anti-Trump signs.
"I'm sick to my stomach every day, and I find myself working on not being angry, because there's only so much we can do".
The one in NY was expected to be one of the largest, with some 85,000 demonstrators registering for the event on the Internet, although the organisation noted that the actual figure ends up being higher.