According to an article by KFOR, the 2021 Oklahoma State Fair allegedly contributed $103 million to the Oklahoma economy.
At least that's what the people who run the fair told us:
Officials with the Oklahoma State Fair say 900,000 people visited the state fair for new food, shows, competitions, rides, and more.
In all, 25% of visitors came from out-of-town for the event, while 75% of fairgoers were local.
As a result of the event, officials say the fair brought in $103 million in direct spending to the Oklahoma City economy.

