The Thomson Reuters/University of Michigan final consumer sentiment index decreased to 93.1 in July from 96.1 in June, missing the preliminary estimate of 94.0.
"A disappointing pace of economic growth was the main reason for the small decline in consumer confidence," the Surveys of Consumers chief economist at the University of Michigan Richard Curtin.
He adds that there is "no indication of a break in the prevailing positive trend".
The current economic conditions index declined to 107.2 in July from 108.9 in June.
The index of consumer expectations fell to 84.1 from 87.8.