Right now about 20K. Sadly, over half of that is due to rent, and I live in a 250-square-foot studio (thanks SF Bay Area!). Thinking about renting a room, but not sure yet.
This rent/mortgage/prop tax/insurance/ utilities/etc... thing is what makes they kinds of polls (i.e. per person in one household) sort of useless. You live alone and pay X amount of dollar for rent, pay all the utilities (and the basic fees just to have them), and so on. Yet a couple could live together in your place and split the rent as well as have lower utility costs by sharing (heating the house for one is the same as heating it for 2 or 20) Paying for internet, cable, landline, etc... for one is the same as it is for 2 or 20, etc...). So your $1,000 place costs you an additional $6000 in income for this poll then it would a couple, or one with children. Of course things like medical and food, clothes, etc... would raise the bill with more people but even then couples and families can often go on lower per person family plans for medical insurance - thus skewing the results of a comparison between people (which I assume is the goal of the poll). Maybe a more realistic poll would be one that said - how much would you spend if you lived more or less the same way you do but alone? Probably to hard to do though. I know that when I was married my own share of the expenses were much less compared to being single.
Eh-while some of this is sometimes true, it just depends on so many factors. Hmm, below's our current budget adjusted to how I can best guess it'd change if it were just me:
$800 mortgage --> $400 (could easily get a room, or even small house, for this where I am)
$500 medical insurance ----> $125 single person plan at my work
$300 electric, water, cable and phones ---> $200
$400 food ---> $160
$70 random household items ---> $40 (much of this is for DD and/or our bigger house and yard)
$100 gas ---> $50
$30 term life insurance ---> $0
$50 car insurance---> $30
$150 spending money (pays for all entertainment, eating out, clothing, etc) ---> $75
$100 gifts ---> $20 (most of this is for the child)
=$1100 instead of $2500/mo, or $13.2k per year for just me instead of $10k per person. So, yes, I save per person with a family, although it's not as dramatic as one might think just looking at a couple of select categories (like splitting internet/cable in half). My numbers would jump from the middle of one bracket to the lower end of the next one up in the poll.