I just heard on PBS Newshour that the rate of population growth in USA has been the slowest since the founding of our country during a year long period that ended July 2021. The pandemic has led to several changes including an increased death rate. Not happy news.
Other less disturbing news has been a slow down in birth rates and a slow down of immigration. Some Republicans still say that the border is "out of control," but that contention doesn't seem consistent with the data. Depends on how one would define out of control.
In that period of time, overall US population still grew by 400,000, but that's a lower growth rate than other periods.
A 400,000 increase, across this big country with a current population of around 325 million, is a fairly small percentage growth rate. The population is still growing, but I would guess not at an alarming rate.
Toward the founding of USA, the overall population was lower, but the rate of growth, compared to existing population, was higher. That wasn't such good news for the Native Americans, indigenous peoples back then.