BOULDER - The city of Boulder's sales- and use-tax collections increased 10.4 percent in September compared with the same month a year ago, boosted by a USA Pro Challenge cycling race event, according to the latest report from the city finance department.

Boulder collected $8,561,878 in September, compared with the $7,758,275 collected in September 2011, according to the report. The collection in September represents sales made in August.

Complete sales tax figures and economic analysis will be released in the next 30 days or so related to Boulder's status as a host city to the finish of a stage of the USA Pro Challenge, according to the report. The privately funded cycling race in August saw $99.6 million in spending across the state, according to organizers.

In Boulder, retail sales-tax collections were up 8.1 percent in September, compared with the same month last year. Of the total, sales-tax receipts from eating places were up 10.6 percent in September and food-store receipts were up 6.9 percent. Receipts at eating places are seen as an indicator of consumers' disposable income.

Apparel sales-tax collection was up 11.2 percent in September, the report said.

For the year to date, construction use-tax collection through the end of September was down by 25 percent compared with the same period in 2011. If Boulder Junction, a development planned on the northwest corner of 30th Street and Pearl Parkway, were included, construction use tax would be down by 6.3 percent, the report said. Boulder Junction is slated to include a hotel, stores, housing, an underground bus station and a parking garage.

Motor vehicle use-tax revenue is up 11.1 percent for the year to date. New-vehicle tax revenue comes to the city based on whether the vehicle owners live in Boulder, not where vehicles are purchased.