There isn’t one single number, because “paycheck to paycheck” is defined differently across surveys.
A reasonable current estimate is that about one-quarter of U.S. households are living paycheck to paycheck, while broader surveys that use a looser definition put the figure closer to half or more.

Why the numbers differ
Some studies count only households that spend nearly all income on essentials, which produces figures around 24% to 25%.
Other surveys count anyone who says they need the next paycheck to cover monthly spending, which pushes the number above 60% in some polls.

So the answer depends on whether you mean “barely making ends meet” or “relying on the next paycheck for cash flow – beyond necessities.
Practical takeaway
If you want the most defensible headline number, use roughly 1 in 4 households.
If you want the broader self-reported financial stress measure, it can be around 6 in 10 adults in some surveys.

