https://amp.cnn.com/cnn/2024/04/24/health/us-birth-rate-decline-2023-cdc
There were about 3.6 million babies born in 2023, or 54.4 live births for every 1,000 females ages 15 to 44, according to provisional data from the US Centers for Disease Control and Prevention's National Center for Health Statistics.
After a steep plunge in the first year of the Covid-19 pandemic, the fertility rate has fluctuated. But the 3% drop between 2022 and 2023 brought the rate just below the previous low from 2020, which was 56 births for every 1,000 women of reproductive age.
The highest rates have, over time, been shifting towards women in their 30s whereas before it used to be with women in their 20s," Hamilton said. "One factor, of course, is the option to wait. We had a pandemic, or there's an economic downturn, let's say – women in their 20s can postpone having a birth until things improve and they feel more comfortable. For older women, the option of waiting is not as viable."
Meanwhile, births continued to shift to older mothers. Older age groups saw smaller decreases in birth rates, and the birth rate was highest among women ages 30 to 34 – with about 95 births for every 1,000 women in this group in 2023. Women 40 and older were the only group to see an increase in birth rate, although – at less than 13 births for every 1,000 women – it remained lower than any other age group.