When I signed my lease, the building manager needed my pay stubs to verify proof of income and they would not approve my application unless I made 40x the monthly rent, though some buildings have different requirements, but usually 35x monthly rent and above. So if you want to live in a luxury building like many of those downtown, you probably won’t get approved for a new lease without making at least 110k and then you need to factor in your debt responsibilities, if you have a car, and other lifestyle habits before determining what “comfortable” means to you. If you go farther west from downtown and have no debt and rarely go out, then you may be able to be comfortable at 80k depending on rent and lifestyle standards. But lots of variables here.

Disclaimer: This can be a much longer conversation, my comment is the highlights version of budgeting in urban areas.