Yes and no.Living in the country - private well, spectic tank, 23 acres to separate me from the neighbors. Water bill - guess it would be the cost of the electricity to run the pump.

There was the cost of the well, the cost of the septic tank and the cost of the pump. Trust me, even though they may have come with the house, you paid for them.
Both the pump and the septic system will require some maintenance so you won't get away with just the electric cost.

Chances are your costs will be much less than living in town, but still more than you might think.
Still a bargain.