Hey OP, I think that's pretty high... I am in a 1BR apt with your same sqft, and my bills for the past three months have not been over $23 each month. It must be your heat.

I do live alone, have GAS heat, and am very aware of turning off lights/appliances, though. (I also don't have a dishwasher or laundry connected to my unit, so I'm sure that factors in.)