By Fred Imbert, Feb. 2, 2015, CNBC.com

Super Bowl XLIX is in the books and the dust is settling in Glendale, Arizona, but the event's economic impact on the city is still being determined.

The Arizona Super Bowl Host Committee estimates the event had an economic impact of more than $500 million in Glendale, David Rousseau, its chairman, said. The committee bases its projection on a study conducted by Arizona State University examining the economic impact from Super Bowl XLII in 2008, also held in Glendale.

The ASU analysis was commissioned by the committee and determined the earlier Super Bowl brought in about $500 million to the city, Rousseau said. The study measured the event's economic impact by considering car and hotel room rentals as well as number of people travelling to the contest by plane, among other variables, he added. "[ASU] did the analysis and surveying to determine the per capita spending in that population," he said. "That's how they got to the $500 million."