Update: NYC Mayoral Democratic Primary figures as of 7/15

Once a week until the results are truly final, Vote NYC is posting updated counts and I am updating the graph accordingly.

The results have not changed significantly; in fact, the margin of victory for Mamdani over Cuomo has so far been slowly increasing.

I find it interesting to graph the various editions of the data for comparison. Here is a gallery of the three graphs so far, in sequence. They use the same scale, so the visual differences should be representative of the actual magnitude of the changes.

Data Source: Vote NYC > Ranked Choice Results > Mayor/Democratic > Interim Rounds

A Sankey diagram of the 2025 New York City Democratic Mayoral primary election ranked choice results as of July 15, 2025. The top 3 vote recipients in the first round were Zohran Mamdani, Andrew Cuomo, and Brad Lander. By round 3, all candidates were eliminated except Mamdani and Cuomo. Mamdani won with 56.4% of the vote to Cuomo's 43.6%. The number of Inactive Ballots at the end was just over 55 thousand - about 5% of the total votes originally cast.
A Sankey diagram of the 2025 New York City Democratic Mayoral primary election ranked choice results as of July 8, 2025. The top 3 vote recipients in the first round were Zohran Mamdani, Andrew Cuomo, and Brad Lander. By round 3, all candidates were eliminated except Mamdani and Cuomo. Mamdani won with 56.2% of the vote to Cuomo's 43.8%. The number of Inactive Ballots at the end was just under 55 thousand - about 5% of the total votes originally cast.
A Sankey diagram of the 2025 New York City Democratic Mayoral primary election ranked choice results as of July 1, 2025. The top 3 vote recipients in the first round were Zohran Mamdani, Andrew Cuomo, and Brad Lander. By round 3, all candidates were eliminated except Mamdani and Cuomo. Mamdani won with 56% of the vote to Cuomo's 44%. The number of Inactive Ballots at the end was just under 53 thousand - about 5% of the total votes originally cast.