It is really hard to say because there is no "typical". It can vary so much. One house we had our largest gas bill was $70, usually around $50 in the winter, the next house our largest gas bill was about $150, usually around $70 then this house it is usually around $150/month. The houses are all about the same size but the windows/insulation and which gas company you have all make a difference. The first two houses were in the same town, this house is in a different town and gas is much more expensive here.
Electric, again, it is going to depend on how much you use. Our electric bill is about $90/month this time of year and $150 or so in the summer-or more if we leave our ponds plugged in

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The only constant we have is trash, $78/3 months and that includes unlimited yard waste pick up.
Water is about $130/3 months
We have a 3500 sq foot house and there are 5 of us, including 3 teenagers.
When we were first married and lived in our tiny 1000 sq foot house I think all of our utilities were about $100/month combined.