Prior literature has found that immigrants have no effect on the wages
and employment of natives. However, this literature has not accounted
for the possibility that immigrants contribute to employment growth i
n the areas where they locate. Research on internal migration has foun
d that internal migrants contribute to local area employment growth. I
n this paper I compare the effects of natives and immigrants on county
employment. Results show that the overall immigrant population contri
butes more to increases in employment than the overall native populati
on. Recent immigrants and recent internal in-movers have similar effec
ts on employment growth. The net contribution of immigrants to employm
ent growth is confined to nonmanufacturing employment.