Rents are so high in some of the nation’s biggest cities that families earning well over the median national income are considered poor enough to need federal help to afford housing.

In San Francisco, a family of four with an income as high as $105,000 per year would qualify for Section 8 subsidized housing vouchers. In New York, Los Angeles, Boston, and Washington, DC, a family of four making more than $70,000 could qualify. That’s no guarantee, though, that families will get the help.

The Department of Housing and Urban Development released their 2017 income limits last Friday, which determine eligibility for various kinds of government housing programs, from Section 8 housing choice vouchers to public housing for the poor, elderly, and people with disabilities

Limits are calculated according to percentages of median incomes by family size and location based on the census’s American Community Survey. The limits fall into three categories: low (80 percent of the median income), very low (50 percent), and extremely low (30 percent of the median income or the federal poverty line, whichever is greater).

Read more: Here’s what you have to earn to be considered low-income in the US – Vox