( columbia , d . c . ) - more births were births in the united states next winter than anything before , corresponding to the research , but it ' s not some newborn crash just yet . about 4 , 315 , 000 babies were born in 2007 , about 15 , 000 more children than the peak rate of the baby bubble in 1957 , added stephanie ventura , a demographer at the national centers for healthcare statistics , which compiled the results from mandatory - certificate registrations at state health departments . " according to our revised data , we had the most number of twins ever reported in 2007 , " she said .
In 2007 about 4,315,000 children were born in the United States.