While their is much reasonable debate about what "true" poverty level rates are, this study uses a threshold of $20k/year for a worker. That's significantly higher than the federal rate set by the Census bureau at $14k/year for a single worker with no other household members. A 2 earner household each pulling in $18k a year, or $36k a year, in the cheaper parts of the US is not an easy life, but its also difficult to…
If $20k/year per worker is "poverty", and to be clear it is a relatively poor wage in the US, it would be interesting to apply the same analysis to European countries. It gets uncomfortably close to the median income in countries that we typically don't view as particularly poor. Americans have anomalously high incomes, even those below the median.