( jefferson , d . f . ) - more women were born in the united countries last year than ever before , according to preliminary evidence , but it ' s not another baby boom just yet . about 4 , 315 , 000 children were born in 2007 , about 15 , 000 more births than the peak time of the baby swing in 1957 , said jennifer ventura , a toxicologist at the national center for population statistics , whom compiled the data from provisional birth certificates registrations at local health departments . " according to our provisional data , we had the peak number of births ever counted in 2007 , " she explained .
In 2007 about 4,315,000 children were born in the United States.