The cost of raising a child

A two-parent family that earns less than $57,000 annually will spend about $160,000 on a child from birth through high school. Those with an income between $57,000 and $99,000 spend about $221,000 and those with higher incomes are expected to spend roughly $367,000 through age 17.

That's through age 17. After that it gets expensive. Source.