No, it isn't - at least not in a bigger city. I make right about that amount and I drive a small car about 25 miles each way to work. Here's what my bills look like:
Take-home pay: ~$1850/mo
Rent & utilities: $935/mo
Health insurance: $220/mo
Gas: ~$150/mo
Car insurance: $100/mo
Car maintenance and/or payment: $180/mo
Food: $150/mo
That's $1735/mo before I buy clothes or do anything other than watch television.
That's why the fast food workers in NYC were trying to get their pay up to $15/hr - because any less than that and you can't physically survive in a city.
Okay, so let's look at that for a moment.
You suggest $935/mo. for rent. Is that a portion of shared rent among several roommates? Or, is that the rent to live by oneself? If the former, how many roommates to a bedroom? If the latter, then being able to live by oneself if one chooses is a comfort and a luxury, not to be taken for granted.
Health Insurance of $220: typically that is a cost covered by an employer. But, in any event that sounds like a middle of the road kind of plan for one person or a person who has some preexisting condition or health condition that causes an increase in rates. My wife and I pay about that for both of us, right now. Having lived most of my life without health insurance (until recently, I only ever had it when I had those awful "stepping stone" jobs), I tend to see it as somewhat of a comfort/luxury more than a necessity, but I understand why some people believe otherwise.
Gas, car, and car insurance of $330/mo.: You mentioned the plight of people who live in large cities. One of the perks of living in a large city is public transit, which can be utilized for a lot less ($112/mo in NYC for example). Choosing to have one's own vehicle, under these circumstances, while understandable, is a comfort, not a necessity.
Food $150/mo.: That is an admirable food budget; can't argue with that one.
So, let's look at the numbers again, taking out the comforts:
Rent (sharing a modest apartment with 1 or 2 roommates in most of the U.S.): $500
Healthcare: $220
Transportation: $112 (for a public transit pass for city dwellers; for others, count on rent going down.
Food: $150/month
Total = $982/month, leaving, in your scenario, ~$868 for clothing, other expenses, and luxuries and comforts.
My point is not that any of these luxuries are bad or excessive. But, my comment was that a person can live in reasonable comfort with $30,000 per year, and your examples kinda prove my point.