This is maybe not entirely surprising, but Census Bureau numbers now confirm that college graduates are less likely to have children and have fewer children if they do decide to reproduce.
According to an article by Cheryl Wetzstein at the Washington Times:
By the time women reach the 40-44 age group, those who didn’t finish high school averaged 2.56 births per 1,000 women, the highest fertility. Women who finished high school or had any college experience had the next highest fertility, 1.88 and 1.91, respectively. Women who finished college had the lowest fertility — 1.75 births among those with a bachelor’s degree and an even-lower 1.67 for those with graduate degrees, the bureau found.
In addition, more than 22 percent of “highly educated, professional” women had no children at all by the time they reached their early 40s.
Highly educated women also have children later in life, according to the article.
Among never-married white and Asian women in their early 40s, incidentally, nearly 70 percent had no children.