A campaign statement released Monday says more than 2,300 people have donated to the campaign, and about two-thirds were contributions of $200 or less.
Overall, Booker has about $1.9 million in his campaign coffers.
Booker plans to wait until after the November gubernatorial election to formally announce whether he will run for senate. He filed paperwork in January that allows him to raise money for a campaign.
He was originally on the short list of possible Democratic challengers to Gov. Chris Christie’s re-election bid, but opted not to jump into that race.
Booker has bolstered his national profile by speaking across the country and interacting with 1.3 million Twitter followers. The Democrat has been mayor since 2006.
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