Julie Swoope and Arielle Schwartz are big supporters of mayoral candidate Zohran Mamdani.

"We're asking people not to rank Andrew Cuomo," Swoope said to a voter in Brooklyn Tuesday evening.

She had just knocked on their door and asked them to vote for the Queens assemblymember.

Both supporters have been living in Brooklyn for years, and both have been knocking doors for his candidacy.

They've also donated to his campaign. Swoope gave $388, while Schwartz gave $250.

"We knew the campaign was launching, and we wanted to make it a big day," Swoope said.

"I also did a little fundraiser at my house too — a Hanukkah party fundraiser," Schwartz said.

They are two of thousands of donors supporting Mamdani.

Far more people have contributed to his candidacy than any of the other top mayoral candidates as of the last fundraising filing in March.

A review of those donations by ZIP code by NY1 shows Mamdani has collected contributions from most ZIP codes across the city, but certain neighborhoods are more supportive than others.

These ZIP codes in Brooklyn — from Park Slope to Bed-Stuy — have the highest number of contributors to Mamdani.

NY1 visited the top area with Swoope and Schwartz.

The neighborhoods in Brooklyn are Clinton Hill and Prospect Heights, where more than 1,050 people have contributed to his campaign.

"People at my age like in their thirties, thinking about starting families and want to have stability and don’t want to feel like they're going to be priced out of their apartment in the next several years," Swoope said.

In order to win, Mamdani will have to broaden that base.

Last week, he went to the Co-Op City neighborhood in the Bronx. In that ZIP code, only six people have donated to his campaign.

"Our plan is to share our message, which is a message for making the city actually affordable,” he told NY1 on Wednesday.

For now, these two will continue courting voters in Brooklyn, with one door at a time.