Per Capita Lottery Sales in Missouri by ZIP Code In 2011, lottery sales topped $1 billion in Missouri. That’s $228 for every eligible Missourian. (You must be at least 18 years old to play.) ...

USPS, April 2013 Ultimately, the USPS divided the country into 9 zip code zones, in which the first number corresponds to a specific zone. Both Missouri and Illinois are in Zone 6.