How much money do food stamp cards have?

Usually, they start with $185/month, but then can be less. 

as much as you were allotted. could be $15, could be $300

The maximum deposit for one person on food stamps is $185 a month. Food stamp cards have no money at all they're good only for food and you have to have the PIN code in order to use it at the store don't use a food stamp card that you have found for your own use if you get caught at the federal crime you'll get five years in prison over $185

Quick answer - there is no set answer to your question.

Food benefits vary based on a variety of factors including geographical location, income, family size, etc.