These are heat maps of where people decide to have the marginal third child that breaks the “family of four” paradigm that is reflected even in consumer goods and packaging because it’s become such a core part of post-Vietnam American culture.
For all races, about 30% of births for 2014 were third kid or higher.
For whites, it was about 25%
A starting point for discussion is that while the coasts with good jobs where both parents can potentially earn 75-100k apiece are punching a little below the national average, they are nevertheless putting up third babies in the double digits in many high-cost counties.
The latest birth and fertility data are showing what I feared, the only age groups showing an increase in births were the 30-44 age groups. All groups under age 30 have been showing consistent and steady declines of late, with the 25-29 group finally succumbing after occasional blips upwards half a decade ago.
Lower under-18 births is ok, and that continues (and no it is not via more abortions, but less sex). But the shift towards having kids in your 30s as the norm continues apace. This is the modern Scandinavian model.
The plus side is that there’s more married childbearing in all racial groups. The unwed motherhood trend is going ever so slowly backwards, consistently. Black births to unwed mothers dropped while the total number of births increased, lowering their percentage of unwed births.
There’s a shift in the last decade where unwed mothers are finally seeing percentage and absolute decreases in their births, but married mothers are having more children.
Fewer women are having children, but the ones who get married first are having more third and up children than they used to five years ago. This is tricky though, because with women having all their kids in their 30s and 40s more, we can’t be sure we haven’t moved into a different fertility pattern of relative robustness for the women who can navigate waiting that long to marry and pop out 3 or more kids. It could be the latest dead cat bounce before we get yet another step down in higher order births.
For white non-Hispanics, a little over 600k births in 1992 were the third live baby or higher. This represented just under 1/4 of all births. Over 75% of all births for 1992 were first or second births.
The approximate distribution of the 600k higher birth orders (less than 100% due to rounding) was:
3rd order: 66%
4th order: 22%
5th order: 7%
6th order: 2.6%
7th order: 1%
8th order or higher: 1.1%
In 2014, there were over 50k fewer such births, a bit over 550k and that represented just OVER 25% of all births for that year.
The distribution of these 550k higher-order births over 20 years later was:
8th or higher: 2%
The total births for 1992 were around 2.5 million, while for 2014 they were around 2.1 million. So people were having fewer children overall, but the ones having many are chugging along pretty impressively. The problem is that there’s no filtering for how much of that chugging along is in little horse-powered buggies, so there’s that to keep in mind.
To put this distribution of higher-order births in context, here’s the “white” distribution for 1970, ten years after the Pill and IUDs were introduced.
Total white births: approx 3.1 million
Total third or higher order white births: approx 1 million
Percentage distribution of third and higher order births:
Admittedly this includes some Hispanics, but only about 4-5%, not enough to shift the overall pattern. This pattern from 1970 could be returning at the higher orders, but it’s too soon to tell.