( washington , d . c . ) - more babies were discovered in the united provinces last time than ever before , according to revised data , but it ' s not another population boom just yet . about 4 , 315 , 000 twins were born in 2007 , about 15 , 000 more births than the peak period of the womb surge in 1957 , reported melanie duran , a geneticist at the national center for health records , which utilized the data from complete birth certificate valid at state health agencies . " according to our provisional numbers , we had the largest number of births even reported in 2007 , " she said .
In 2007 about 4,315,000 children were born in the United States.