A measure of consumers' attitudes rose this month because of higher income households.
The Index of Consumer Sentiment hit 91.2 in September's final reading, according to University of Michigan on Friday. Economists expected the consumer sentiment index to hit 90, up from 89.8 in August.
The sentiment index for households earnings under $75,000 per year remained the same level for the third consecutive month.
"The larger recent gains among upper income households was partly due to continued declines in their inflation expectations," said Richard Curtin, the surveys of consumers chief economist, in a press release.
The monthly survey of 500 consumers measures attitudes toward topics like personal finances, inflation, unemployment, government policies and interest rates.
-- CNCB's Anita Balakrishnan contributed to this report.