In the first quarter of FY 2025 54% of all new permanent residents adjusted, including 70% of those who got green cards through employment (and 84% of the first preference employment category) and 69% of those who got green cards through marriage to US citizen spouses.

The only large category of immigrants that does not come primarily through adjustment are the "family preference" categories for more distant relative such as adult sons and daughters and siblings.

https://ohss.dhs.gov/system/files/2025-07/2025_0725_ohss_leg...