I’m curious where your $31,000 annual income figure comes from. I’d had in my mind closer to $70,000 - which a quick confirmatory glance at the census seems to confirm for me [0] - but I should update my assumptions if they’re off by that far or I’m thinking about it wrong.
what you've linked is the median household income, not individual income, i.e., calculated as the combined gross income of all members of a household, so it stands to reason that the individual median/average income is closer to the $31000 posted by the earlier comment than the $70000 you mentioned...
https://www.census.gov/library/publications/2022/demo/p60-27...).