Massive US government stimulus payments during the Covid-19 pandemic last year boosted household income and lowered the share of Americans living in poverty, according to government data analysis released Tuesday.

As the pandemic forced the economy to largely shutdown, causing massive job losses, the US Congress approved a series of huge rescue packages with cash payments to individuals, and funding to allow companies to continue paying wages.

"Post-tax, real median household income increased 4.0 percent between 2019 and 2020," the Census Bureau said.

And the measure of poverty that takes stimulus payments into account dropped to 9.1 percent, 2.6 percentage points lower than 2019, the agency said.

Without factoring in the government aid however, the official poverty rate rose for the first time in six years to 11.4 percent, meaning about 3.3 million more people fell into poverty last year.

And excluding stimulus, the median household income was $67,521 in 2020, a decrease of 2.9 percent from the 2019, the agency said.

That decline was "the first statistically significant decline in median household income since 2011."

The data are based on multiple Census reports.