The campaign said it has about $150 million in the bank heading into October, including money raised through joint committees for the DNC and state parties.
"With Donald Trump promising to dump an additional $50 million of his own money into the campaign and right-wing billionaires pledging millions more, we must continue to step up in order to have the resources we need to mobilize millions of voters across the country," Clinton campaign manager Robby Mook said in a statement.
Trump had not released fundraising totals for September as of Saturday afternoon.
Clinton said that more than 900,000 people donated to her campaign in September, with donations averaging about $56. That calculation did not take into account money raised for the national and state Democratic parties, which is solicited in much larger amounts. At a fundraiser Friday in Miami Beach, for example, donors paid a minimum of $10,000 to attend.