Persons who received a green card in 2019 were 56% between 18- 44, prime working age, compared to 36% of the total population. New green card awardees 65+ are much fewer – 5.4% vs 18%.  (Go here.) Until 2025, immigrants added about 600,000 new workers a year.

This helps to explain the relatively high share of jobs filled by foreign born persons  — 18.6% –compared to the percentage of residents who are foreign born – 14%.

And this helps to explain why high a high percents of new births are by foreign born mothers – 23% compared to the percentage of residents who are foreign born – 14%.  Immigrants comprise a birthing factory (I have addressed this here).