Looks like I overshot that estimate...
Prior to 1990, liquor was sold only in a state owned system of stores, known as ABC Stores. In that year, the state withdrew from the retail liquor business and auctioned off permits to private businesses, who operate as "
agents of the state". In smaller counties, a local
monopoly was provided for, with only one agent per area, but in larger counties, multiple competing agencies were granted. Agencies are rebid every 10 years. In the 2010 rebid, the following agencies were granted:
Rite-Aid drug store chain, 42 agencies
CVS drug store chain, 9 agencies
Seven-Eleven convenience store chain, 20 agencies
Sam's Club warehouse store chain, 2 agencies
Kroger grocery store chain, 1 agency
privately owned convenience stores, 31 agencies
privately owned alcohol and tobacco shops, 14 agencies
privately owned grocery stores, 7 agencies
privately owned souvenir shop, 1 agency
privately owned stand-alone liquor only stores, 40 agencies
Closer to 30%