Depends on your situation. I would imagine with a mustachian lifestyle in Oklahoma it could be a lot lower. Near DC, full-time daycare at a center in our daughter's first year of life would have cost over $20,000, not including diapers, formula, food, etc which we would have needed to provide. Daycare out of a cheap licensed family home would have been about 15,000 in the first year. So, yeah. Expensive in the Northeast.
The article said low-income and rural average was 145,500 not 245,000, which is about 8000/yr. This also includes estimated child care costs. You'll probably be around or over that with daycare for the first few years, and lower without daycare. But after the kids are in public school, and with reasonable expenses in clothing, food, toys, camps, spoiling, etc, I'm sure you'll do it for less!