Mark Kelly's net worth is estimated to be around $20 million as of 2025, according to multiple sources including Celebrity Net Worth, Quiver Quantitative, and financial disclosure reports.123 +2 Some estimates range from $7.7 million to $34.5 million, reflecting the broad asset value categories used in Senate disclosures.6

Wealth sources include his career as a NASA astronaut, U.S. Senator, and extensive post-NASA earnings.783 +2 Before entering politics, Kelly earned substantial income from speaking engagements, averaging $27,419 per speech, with some fees exceeding $50,000. He also earned over $1.7 million from 62 speeches in the two years before his 2020 Senate campaign.

Book deals significantly contributed to his wealth, including co-authoring Gabby: A Story of Courage, Love, and Resilience and children’s books like Mousetronaut.83 Additionally, he earned income from consulting and board memberships, totaling $1.5 million in 2019.

Investments and assets are primarily held in blind trusts, with the Kelly Qualified Blind Trust valued between $5 million and $25 million.3 He and his wife, Gabby Giffords, own real estate, including a Tucson home purchased for $1.495 million in 2012 and now worth around $3 million.

As a U.S. Senator, Kelly earns a salary of $174,000 per year, though this is a smaller portion of his overall net worth.86 His financial disclosures show no liabilities, and he ceased paid speaking and board roles upon entering the Senate in 2020.