The claim that the 400 richest people in the U.S. Are worth a record $6.6 trillion after gaining $1.2 trillion in the past year is supported by multiple recent and reliable sources.
The 400 richest people in the U.S. are now worth a record $6.6 trillion after getting $1.2 trillion richer over the past year.

America’s 400 richest got even richer in 2012 with their net worth hitting $1.7 trillion — Forbes
Source: nydailynews.com
Key Evidence
Forbes' September 2025 report states: 'The 400 richest Americans are worth a record $6.6 trillion after getting $1.2 trillion richer over the past year'.
forbes.comforbes.comThe Richest Americans Are Worth A Record $6.6 Trillion
Another Forbes article reiterates this figure and growth amount.
forbes.com.auforbes.com.auThe Forbes 400 List: Ranking America's Richest People
The top 10 richest Americans alone increased their wealth by about $365 billion in the same period.
abc17news.comabc17news.comThe 10 richest Americans got $365 billion richer in the past year. Now they’re...
What the Evidence Shows
The primary source confirming this claim is Forbes, which annually publishes the Forbes 400 list ranking America's richest individuals. According to the September 9, 2025, Forbes article, the combined net worth of the 400 richest Americans reached a record $6.6 trillion, reflecting an increase of $1.2 trillion over the previous year.forbes.comforbes.comThe Richest Americans Are Worth A Record $6.6 Trillion
This figure is corroborated by another Forbes-related source, which explicitly states that the 400 richest Americans are worth a record $6.6 trillion after gaining $1.2 trillion in the last 12 months.forbes.com.auforbes.com.auThe Forbes 400 List: Ranking America's Richest People
Additional context from other sources highlights related wealth increases among subsets of the richest Americans: for example, the top 10 richest Americans gained approximately $365 billion in wealth over the past year.abc17news.comabc17news.comThe 10 richest Americans got $365 billion richer in the past year. Now they’re...
oxfamamerica.orgoxfamamerica.orgWealth of 10 richest US billionaires increased by over $360 billion in the last...
Some older or less directly relevant sources mention different figures (e.g., $1.7 trillion net worth in earlier years or for smaller groups), but these do not contradict the current claim about the total wealth of the top 400 individuals in 2025.
The Oxfam reports provide broader context on billionaire wealth growth but focus on different aggregates and time frames; they do not dispute the Forbes data.oxfam.orgoxfam.orgBillionaire wealth surges by $2 trillion in 2024, three times faster than the...+1 more
Overall, multiple independent and authoritative sources confirm that as of 2025, the combined net worth of America's 400 richest people is approximately $6.6 trillion, with a $1.2 trillion increase over the past year.