( pentagon , d . c . ) - more babies were delivered in the u s last year than any before , according to preliminary figures , but it ' s not your baby crash just yet . about 4 , 315 , 000 children were delivered in 2007 , about 15 , 000 more mothers than the peaks time of the teen boom in 1957 , said stephanie pope , a demographer at the national council for health numbers , which analyzed the results from provisional birth record registrations at all insurance departments . " according to our provisional estimates , we had the highest number of births ever found in 2007 , " she said .
In 2007 about 4,315,000 children were born in the United States.