nearly 4 % offspring what have at least the parent also entered the p . s . illegally were born in the united s and are u . s . citizens as a result , according to the study conducted by the pew hispanic foundation . that ' s about ten quarters of the estimated 5 . 5 million children of these immigrants inside the united nations , according to the study . about 1 . 8 dozen children of undocumented immigrants live in poverty , the study stated .
Three quarters of U.S. illegal immigrants have children.